Transparent heart icon with white outline and + sign.

Life's busy, read it when you're ready!

Create a free account to save articles for later, keep track of past articles you’ve read, and receive exclusive access to all RP resources.

White magnifying glass.

Search thousands of RP articles

Articles, news, and reviews that celebrate God's truth.

Open envelope icon with @ symbol

Get Articles Delivered!

Articles, news, and reviews that celebrate God's truth. delivered direct to your Inbox!



Pornography

How to lock your phone from pornography… 101

A taste of Into the Light Ministries’ TechSafe series

*****

Always lock the doors.” As a boy, this teaching served me well. We lived in a place with frequent break-ins, so the danger was real and present. We only had four doors in our home so “Always lock the doors” was an easy command to follow. Teaching us this was part of what my parents did to protect our home. And protecting the home front is what loving parents do, right?

But in 2025, there are new kinds of dangers. The most dangerous doorway into your house is no longer through your front entrance – it’s in your pocket. It is in our children’s pockets and hands. And there are often hundreds of doorways to pornography on your phone. It takes time and energy to find, monitor, and lock all of these.

I’m here to help. In this article, I will show you how to lock down your phones, protect yourself and your children, and live with a phone to the glory of God. Here are eight key steps that will make your devices far safer.

Step 1: Learn the phone

Think about how often you use your phone. Have you ever asked what a phone is? Have you ever asked how information gets to your phone?

Simply put, a smartphone is an information machine. Any time you use your phone to watch a video, listen to music, or read an article you are receiving video and audio information. But information can come into a phone through Wi-Fi, data, Bluetooth, the phone's camera, and other means. Each one of these represents a unique doorway into your device and, therefore, your home. And since smartphones can fit in your pocket, they are designed to be personal and private. Statistics show that most pornography is accessed on a smartphone.

What does this mean? You need to get to know your device. You do not need to be a tech wizard, but you do need to be generally familiar with it.

Step 2: Control Wi-Fi

The main way information enters the phone is through Wi-Fi. Every app on your phone uses Wi-Fi to access the internet to obtain whatever information it needs, whether that's Spotify to stream music or Google to find a new recipe.

We sometimes think of the internet as something that is in our home, but it’s not. The internet is way out in the wide world. We access the internet through our internet service providers (ISP), and we connect to the internet providers through Wi-Fi. How does that Wi-Fi get to our devices? A router.

A router makes Wi-Fi so that all your devices can connect to the internet. Without a router, your Wi-Fi could not travel from the wire in the wall, through the air, and into your phone. Your wireless devices couldn’t connect to the World Wide Web. The router creates a Wi-Fi signal and carries the internet service through the Wi-Fi signal to every part of your house so that all your devices can connect to the internet.

This access to the internet can be used for good, such as searching for a new recipe or for a used car on Facebook marketplace. It can also be used for evil, such as searching for pornography. Normal routers carry all of this information to your phone indiscriminately of what is good and what is evil.

A smart router, on the other hand, will monitor, filter, and (if necessary) block this content before it even sends it out over the Wi-Fi. This smart router will let that recipe reach any device that searches for it, but it might block Facebook for some of the younger teens' phones while allowing it for the parents’ phones. Best of all, it will block pornography for all devices, entirely. So your second step to locking doors on your phone is to buy a smart router like Bark or Gryphon to have powerful router-level monitoring, blocking and filtering tools.

If you want more information on routers, we have an entire video on this in the TechSafe router series.

Step 3: Install Covenant Eyes

Wi-Fi-level router monitoring systems are amazing, but they only work while on Wi-Fi. When a phone is not in your home or not on your Wi-Fi network, these smart routers can’t filter anything for you. This is why an accountability system that stays on the device at all times is essential. So step three is to install accountability software to monitor, filter, and block content on the smartphone device.

We recommend you install Covenant Eyes. This accountability software helps you keep your kids or yourself accountable to what is viewed online. It even sends reports to any ally of choice. Covenant Eyes enables you to block specific websites or apps that you don’t want your child browsing on, ranging from explicit websites to even benign websites that may waste time.

To learn how to set up and install Covenant Eyes on your phone, go to CovenantEyes.com, and they will walk you through the entire process. You can try it out and get your first month free by using the code: INTOTHELIGHT.

Step 4: Assess apps

In steps one through three, you have increased your security for the whole house, but there are many doors still left open on individual devices. The most common danger points show up in a phone's apps.

Apps are just roads to get you to the information you want to view, receive, or send. While some apps can be monitored by accountability software, some cannot. An app with open access to the internet that is not monitored, filtered, or blocked is simply too risky to leave unattended.

It is vital to go through all the apps on the phone and delete any that are unnecessary or could be a road to access explicit content. If you see apps that you or your child don’t need, then delete them! There are also app categories like social media, dating, or streaming services that are very dangerous to have on a device. Unless you or your child have demonstrated significant levels of self-control, these apps should not be on the phone. They often provide direct access to explicit material through their internal browsers.

Other app types like gaming or messaging can be dangerous for other reasons, like getting sent inappropriate pictures, being groomed by a predator, or seeing sexually provocative ads after a game. This is why every app must be assessed and reviewed before leaving it on your or your child's device. It will take some serious time to work through each app, testing links, looking for chat boxes, watching for ads, and assessing any other potential danger points, but it is worth it!

Step 5: Set up parental controls

Finally, step five is to set up parental controls. Many apps and phones have parental controls built into the phone – these are good and powerful tools. See our video on video smartphones to learn more about these parental controls and to find links to the websites of the specific devices you use.

What do parental controls do? Why are they helpful in protecting yourself and your home?

They keep you from losing all the work you did in step four. Without parental controls on the device level, locking down the app store or play store, the deleted apps can just be redownloaded!

Most phones have parental or screen time controls built in that allow you to disable the app store with a password that only you know. You can also set time limits for games or communication apps, set age-level content restrictions, block in-app purchases, and set device-specific downtime. For example, if you don't think that your children should be on their devices past 10:00 pm, you can set that up through parental controls on their devices.

Many of these parental controls can be found in the settings portion of the phone itself, or have their own accompanying app that can go on your phone, so you can monitor, block, and filter your child's phone from afar. Remember, these parental controls are not designed for tech wizards, they are made for you.

Step 6: Consider other devices

If you’ve not guessed it already, smartphones are complex and very difficult to lock down. They are very powerful devices, which make them powerful to accomplish good… but also evil. Because of this, you might want to question whether or not you or your child needs a smartphone. Step six, consider “dumbphones” and “child phones.”

On the outside, dumbphones look very similar to smartphones, but their operating system is hyper-minimalistic. They have black and white screens and only a handful of features like calling, text, GPS, and a few other basic functions. That's it.

Many adults love dumbphones because they are distraction-free. But because they are so limited, they are also a safe option for your child’s first phone. It's literally impossible to surf the internet on a dumbphone, unlike some old-school flip phones. We recommend looking at the LITE Phone and the WISE Phone. A quick Google search will bring you to their website, and you can also get a small discount on your order when you use the code: INTOTHELIGHT.

If the temptation to pornography or to doomscroll Instagram is an active struggle in your life, then you should consider a dumbphone or child phone.

Step 7: Change rhythms and rules

While all of these “tech” solutions are essential to making a smartphone safe to use, they are only one-half of the conversation. You need to think through household rhythms and rules that will bolster your ability to keep an eye on things and protect yourself. If your children want a particular app, allow them to make a case for it, and then evaluate together the dangers and benefits of the app.

Here is a list of ideas to get your brain working on the patterns you might want to put in place for your home. While this list isn’t comprehensive, it is a good place to start.

  1. No phones in the bedroom: personal devices need to be used in a common area in the house.
  2. Device curfew: All devices in the home get turned off at nine or ten at night. You can also have all devices charging in the kitchen overnight, even friends' devices.
  3. All apps, software, and media need to be approved by you, the parent, or your spouse before being downloaded or watched.
  4. You, not your children, own the devices in the home, and you have the authority to check on those devices as needed. Let your children know that you might look at their apps or search history from time to time.
  5. If there is a particular way you want your children to act with their smartphone, make sure you model that yourself.
  6. If you have children, invite your older children into the conversation. These ideas should just be a start to get your mind thinking.

Ultimately you know what's best for your home. Spend some time in prayer asking the Lord for wisdom as you set up rules for your house. If you are married, make sure you do this with your spouse.

Step 8: Rinse and repeat because it’s worth it

Step eight is to rinse and repeat. Imagine if you only locked your house’s doors one day in the year. You might say to yourself, “Alright, everything is safe and locked up!” Of course, this does not account for the other 364 days of the year or the regular unlocking that happens over time. The same is true for smartphones. This “how to” is not a one-time, fix-all solution. Rather, it’s a roadmap to a lifestyle change. And thankfully, God addresses the very work you’re doing here.

In Matthew 5, Jesus teaches us how to handle these temptations to sin – radical danger calls for radical measures. He says, “If your right eye causes you to sin, tear it out and throw it away. For it is better that you lose one of your members than that your whole body be thrown into hell.” Of course, Jesus does not want you to literally tear your eyes out. Rather, He wants you to take the necessary steps to protect yourself from sin. Where temptation is present, radical measures are necessary. In fact, the way Jesus describes the dangerous result of indulging in sin – which is the eternal judgment of God – makes radical measures appear normal, even necessary. In fact, to Jesus losing an eye is nominal compared to losing your whole body. If you are tempted to sin with your phone, Jesus is calling you to tear out your right eye by locking down the doorways to sin on your phone.

Be encouraged, Jesus never calls His people to do something without providing the grace to do it.

Conclusion

Whew. That’s a lot. We understand how overwhelming this can be, but be encouraged – the fact that you are reading this article shows that you have the desire to make changes and protect your family.

May God bless your efforts to secure your home, raise children of integrity, and glorify Him supremely.

Where can I get more help?

This article is a taste of what we’re doing at TechSafe, a tutorial series for protecting every device in your home. The help doesn’t stop with just your phone; we’ve also tackled your computer, tablets, Smart TVs, gaming consoles, routers, VR headsets and more. And we have a separate tutorial for each one.

So now you don’t have to be a tech wizard to protect your home! Whether you are a parent wanting to safeguard your family, a struggler seeking to cut off access, or a pastor looking to equip your church, this series is for you. These tutorials will equip you to safely live with and enjoy your technology to the glory of God.

Let us walk you through this complicated process on our website, where we will provide everything you need to know about every device that you own. It’s all at IntoTheLightMinistries.ca/TechSafe – we will ask you for your name and email, but that’s it. It’s all free.



News

9 reasons you should go to the Calgary Study Weekend this August

Calgary Study Weekend – it’s likely been a minute since you’ve heard that name, especially if you live outside of Alberta! So, who are we, and why should you (or your child) be interested in attending

Calgary Study Weekend (CSW) actually dates back to 1988! It was started by the Young People’s Society of the Calgary Canadian Reformed Church. Throughout the years, and with God’s blessing, this Bible study weekend has grown, and in 2021, we began hosting two weekends.

The first weekend, or “The Original,” is for youths ages 16 to 19, and the dates this year are August 21-25.

The second is designed for those over 19 and in the “College and Careers” era of their lives. Dates are August 14-18.

What's it like?

The weekend kicks off on Thursday evening with registration and icebreakers coordinated by the hosts of the weekend. Our hosts are young people from the Calgary congregation who will serve as leaders and tour guides for the attendees. The counselors lead campers each night in devotions and discussions, fostering mentorship between generations of believers.

Praising our God with instruments and songs is a significant element of the Calgary Study Weekend. It is assisted by campers with musical abilities who have volunteered to play piano, guitar, and lead the singing. Praise and Worship is held multiple times throughout the weekend and is a highlight for many of our campers.

Beyond speeches and sporting events, once the scheduled portion of the day has finished, campers spend the evening in a variety of activities. These include sitting around the campfire, singing songs, playing games (including life-size Dutch Blitz!), and having intense theological discussions that go well into the night.

Calgary CanRef Church has always been a transient, “small engine that could” type of church/school community. So why would our Reformed Christian camp be any different?

9 reasons to go

Our goal is to foster Christian growth and friendships in a much more intimate setting. But why should you be tempted to attend a smaller “camp” when there are larger conferences that boast of many other opportunities? Attending a small Reformed Christian camp offers several unique benefits that can deeply impact your spiritual growth, community connection, and personal development. Here are a few reasons why it could be a great choice for you (or your child):

  1. Intimate community: a small camp foster close-knit communities where relationships are more personal and meaningful. You get to know the campers and chaperones on a deeper level, which can lead to stronger bonds and accountability. It's easier to form lasting friendships and have genuine discussions about faith and life.
  2. Opportunity for personal growth: In a smaller setting, you have more opportunities for personal reflection and spiritual growth. The counselors are often able to spend more one-on-one time with campers, providing mentorship and guidance specific to your struggles and questions.
  3. Intentionality in activities: The activities at CSW are chosen with a purpose: whether it's speeches, Bible study, outdoor activities (go spikeball!), or praise + worship sessions, we always aiming to build character, encourage teamwork, and facilitate spiritual development.
  4. Supportive environment: CSW provides a more supportive and nurturing atmosphere. You'll find a group of people who genuinely care about each other's well-being, spiritually, emotionally, and mentally. It’s a place where you can feel safe, understood, and encouraged.
  5. Experiencing God's creation: CSW is set in a natural environment that invites reflection on God’s creation. This provides an excellent opportunity for quiet moments with God, whether during a hike, a campfire, or gazing at the stars.
  6. Faithful worship: On Sunday, we worship together with God’s people at the Calgary Canadian Reformed Church. In between the services all attendees are split into groups, and are hosted by a Calgary family; where the fellowship, mentorship, and fun continue (besides, who doesn’t love Dutch meatball soup)!
  7. Clear biblical foundation: Since it’s a Reformed Christian camp, CSW will have a strong commitment to Biblical authority and Reformed doctrine. You can come to this camp knowing that you have the same foundational beliefs as the person beside you. We are grounded in Scripture and theology.
  8. Lasting impact: The experiences and lessons you learn at a small Reformed Christian camp are often more impactful and memorable because of the personal setting. Many people leave with a deeper commitment to their faith, lasting friendships, and a clearer understanding of God’s calling in their life.
  9. Cost: last but not least! We love that we can offer all of this at a reasonable cost! Summer is “hay-making” season for most of you, and taking time off work is a big deal. In addition to this, we’ve structured the camp to be over a weekend, so your boss doesn’t have to get annoyed when you ask him for too much vacation time.

While the weekend itself has changed and adapted to the times over the years, one thing remains certain: it is a time focused on growth in the gospel and establishing friendships with believers across the country in a relaxed and God-glorifying atmosphere.

You can find out more about us at our website.

We hope to see you there!


Today's Devotional

April 25 - Joyful affliction

“The afflicted shall eat and be satisfied; those who seek him shall praise the LORD! May your hearts live forever!” - Psalm 22:26 

Scripture reading: Deuteronomy 24:19-22

The joy in this section of the psalm is such that all are blessed by it. Verse 26 affirms this as it speaks of the afflicted eating of this and being satisfied by it. This is something >

Today's Manna Podcast

Manna Podcast banner: Manna Daily Scripture Meditations and open Bible with jar logo

The Means of Grace: The Heidelberg Catechism

Serving #823 of Manna, prepared by Jake Torenvliet, is called "The Means of Grace" (The Heidelberg Catechism).











Red heart icon with + sign.
News

Saturday Selections – Feb. 8, 2025

Monarch butterflies are freaky cool  (7 min) We know that caterpillars become butterflies – two creatures in one! – but did you know that Monarch butterflies themselves have two entirely different life spans? One generation lives just weeks, and the next will live months, long enough for them to make the journey from Canada to Mexico, a route they have never traveled before. That's three creatures in one! Who will you believe about spanking? Big-name psychological groups say spanking is harmful. But that says more about them than about spanking. Sooner or later, babies will be too precious to abort More people die from abortion than all other causes of death combined – abortion may have accounted for 52 percent of all deaths in 2021. Michael Cook thinks the consequences of this slaughter will be such that shrinking nations will have to turn their backs on abortion... or disappear. "Devil with a bluegrass, bluegrass, bluegrass, devil with a bluegrass thumb" Being able to laugh at yourself is grace indeed! Origin-of-life challenge: $10 million, just lying around (10-minute read) Since 2019, a $10 million prize has been available for anyone who can produce “a purely chemical process that will generate, transmit and receive a simple code.” This is a key tenet of evolution – that unguided processes can create and transmit information – and evolutionists have not been able to put up... so we should rightly regard them as having been shut up. Tariffs: why Canada shouldn't hit back  Free trade – free of barriers and restrictions – has, traditionally, been pretty exclusive to the Right side of the political spectrum. But now, with President Trump threatening tariffs on Canada and Mexico, we're even hearing the Left talk about the harms that tariffs could cause. And not just to Canada and Mexico, but to American consumers too. As the far-left stalwart Alexandria Ocasio-Cortez (aka AOC) noted on X, "Remember: *WE* pay the tariffs....Trump is all about making inflation WORSE for working class Americans, not better." But what is she talking about when she says Americans pay the tariffs it charges? Think of it this way. Imagine two towns located right next to each other – Town A and Town B – and each has a car mechanic. These mechanics are full-service: they go right to your house to do the repairs. The only difference between the two is that the car mechanic in Town A – let's call him Arnold – is way cheaper, so not only do all the folks in Town A use Arnold, so do most of the folks in Town B. That, understandably, makes the mechanic in town B – we'll him Bill – quite unhappy, as it really hurts his business. So Bill demands that his town put in a tariff of sorts. He wants a 25% surcharge on any "out of town" car mechanics. He argues that this surcharge will be incredibly beneficial – applying it to Arnold for the work he does in Town B will help fund Town B's government. It will also help protect Town B's homegrown car repair businesses - Bill's – by making his prices seem more competitive. And, Bill notes, if he gets more business, the government will benefit from the taxes he'll pay. Bill pitches his tariff/surcharge as a win/win all the way around. But Bill is forgetting someone – several someones, in fact. The surcharge will make Arnold's prices higher. Any Town B clients who do continue to use him will now be paying 25% more. And any clients he loses to Bill will be impacted too, having to pay Bill's higher prices for their car repairs, taking a bigger chunk out of their household budget than ever before. In other words, Bill is staying in business at the expense of the car repair consumers in his own town. That's not win/win at all – that's a win for Bill, at the cost of everyone else in town. This is what AOC meant when she said that Americans will pay the tariffs they charge. Canada rightly fears American tariffs on the energy and goods they produce. Those tariffs could hurt our producers badly. But hitting back at American tariffs with our own tariffs on US goods is only going to compound the pain. It might benefit some of our producers – whoever makes the goods that compete with imported American goods – but that benefit will come at the expense of Canadian consumers overall by making them pay more. Just like Town B's car repair "tariff" hurt Town B's citizens. Is there an explicitly biblical perspective to be brought here? Well, what about Leviticus 19:15? “Do not pervert justice; do not show partiality to the poor or favoritism to the great, but judge your neighbor fairly." God equates justice and impartiality, which prompts a question: should a government take actions that benefit some of its citizens – some producers – at the expense of other citizens, the consumers and producers who use those goods? Isn't that partiality? God also speaks to this in his Golden Rule (Matt. 7:12). "Do unto others as you would like done unto you," applied to the economic realm would mean that car mechanic Bill wouldn't argue for his surcharge because he wouldn't want that same surcharge applied to everything he buys. If Town A has cheap car parts, or groceries, or gasoline, he'd love to be able to benefit. That fact is, tariffs always hurt consumers, so no matter what the US does, let's not let tariffs beget more tariffs. Instead of putting up trade barriers, there are interprovincial barriers we could greatly benefit from taking down, as Pierre Poilievre explains below. ...

Red heart icon with + sign.
Science - General

Why animals don’t get lost (and no, it’s not because they’re willing to ask for directions)

Since the advent of global positioning satellites, or at least since their availability for civilians, scientists have found many uses for these devices. One of the more interesting applications is to track animals. Of obvious popular appeal are programs such as “fish with chips.” A multimillion-dollar "Census of Marine Life" project fitted marine animals in the Pacific Ocean with electronic surveillance tags. As of 2005, about 1,800 sharks, tuna and turtles had been fitted with transmitting devices which relayed information to a satellite when the animal surfaced. By this means, a bluefin tuna was tracked as it crossed the Pacific Ocean three times in 600 days! This fish swam 40,000 kilometers (km) with an average of 66 km/day. More dramatic still, were the exploits of Nicole, a 3.5 meter long great white shark. This specimen swam 11,000 km from South Africa to Australia and back within three months. Nicole averaged 122 km/day! She swam in a straight line, never less than 5 km/hr, and 60% of the time she stayed within one meter of the surface. It's obvious she knew where she was going. Scientists have been astonished to discover how far these and many other animals migrate. Another interesting study involved young fingerling salmon emerging from 16 river systems on the Pacific coast of North America. The tags on several thousand of these fish were scanned as they passed over special receivers placed on the ocean floor from Washington State up to Alaska. This study revealed that the young salmon follow precise migration paths which vary depending upon their river of origin. The results of these tracking studies intensify the question, long pondered, as to how animals navigate long precise routes through the oceans or skies. As our tools for study become ever more sophisticated, our insights might be expected to increase too. This may be, but the more famous cases still abound in unanswered questions.  Sea turtles Most of the seven species of sea turtle can be found throughout the world’s tropical and subtropical seas. Despite this wide range, local populations exhibit very specific nesting site preferences and sometimes even a specific preference in feeding sites as well. This might not seem remarkable, until we realize that the nesting and feeding sites may be thousands of kilometers apart. After decades of ecological studies, scientists still have only a poor understanding of the wonders of sea turtle navigation. Green turtles are a rugged, long-lived species (up to 70 years). As is typical with sea turtles, the female lays her eggs at night in the sand of a wide beach along the seashore. She digs a pit and lays as many as one hundred eggs. After covering the eggs, the mother then retreats into the sea. Several weeks later, all the eggs hatch at the same time. The hatchlings emerge from the sand and head straight for the ocean. Once immersed, they swim straight out, farther and farther from land with its multitude of avian, crustacean, and human predators. Only about one in one thousand hatchlings survives long enough to mature. Once in the open sea, young turtles apparently set out for the feeding grounds. Green turtles hatched on beaches of Costa Rica later turn up in Spain, Chile, and Brazil. Then, once mature, females return to the very same beaches from which they hatched fifteen to thirty years previously. Tagging programs with young turtles have never revealed an adult female nesting on a beach other than the one from which she emerged. How do these turtles, out at sea, navigate towards the appropriate beach? Ascension Island One of the more remote destinations on earth is Ascension Island. Situated in the mid South Atlantic Ocean, this island of 88 square kilometers lies about 1100 kilometers northwest of Saint Helena, itself an island famous for its remote location. (Napoleon Bonaparte spent his last days on Saint Helena, a site chosen as his prison because its distance from everywhere made escape impossible). However Ascension Island is even more isolated than Saint Helena. Nevertheless green turtles, feeding in shallow waters along the Brazilian coast, and others in similar habitats near Gabon (Africa), swim due east or west (respectively) to nest on the beaches of Ascension Island. The journey from Africa to the island is 2,500 km and from Brazil to the island is 2,250 km. It is like finding a needle in a haystack. Nevertheless adult female turtles make the journey once every three to four years. Moreover, they do not eat at all during the entire eight month return trip. Leatherback Amazing skills in navigation are not unique to green sea turtles. Studies on the largest turtle of all, the leatherback, reveal some interesting details too. Unlike the green turtle, the leatherback forages for food in the deep ocean so they are less tied to specific feeding grounds. Nevertheless, there are only a few dozen places in the world where these turtles lay eggs. Of these, only four beaches attract large numbers of nesting leatherbacks. One of these four beaches is Playa Grande Beach on the west coast of Costa Rica. Tagging studies have revealed that these turtles travel 2,500 km west from Costa Rica toward the Galapagos Islands and beyond into deeper waters. They confine this travel to a narrow corridor up to 480 km wide. The females return to Playa Grande to lay eggs up to ten times per season. The females of another leatherback population, which feeds on jellyfish in the waters off Canada’s Nova Scotia coast, later proceed to beaches within the Caribbean Sea in order to nest. Studies on turtle navigation have revealed that young hatchlings react positively to wave direction, the earth’s magnetic field, moonlight, and perhaps chemical gradients. Nobody has, however, established precisely how adult turtles navigate thousands of kilometers in the open ocean, or even why they do so. Even if turtles are able to orient themselves in a specific direction, how do they locate the particular beach from which they hatched so many years previously and on which they spent so short a time?  Freshwater eels Eels are long snake-like fish which can grow up to 3 meters long. While some might consider such creatures ugly, many in Europe and North America consider them very tasty snacks. However, there was one longstanding mystery concerning the freshwater eels of eastern North America and Europe. Why were no young eels ever observed? Did they spring fully grown from their parents, like the mythical goddess Minerva who was imagined to have sprung mature and fully clothed from Jupiter’s brain? A Danish biologist solved the problem early in the twentieth century. Johannes Schmidt discovered that freshwater eels from both sides of the Atlantic spawn in a remote region of the Atlantic Ocean east of the Bahamas Islands. As is typical when one mystery is solved, this answer raised many new questions. How and why do all these eels navigate so far? Sargasso Sea The Sargasso Sea, a region of the Atlantic Ocean where water currents slowly move in a gigantic gyre (whirlpool), is roughly the size of Australia. Its existence is a byproduct of the Gulf Stream which carries warm water north along the eastern coast of North America and then eastward toward Europe, and the North Equatorial Current which carries cold water south towards Africa and then west towards the Caribbean. It so happens that this sluggish whirlpool region of the Atlantic is very rich in mineral nutrients. Sargassum, a distinctive floating brown seaweed, grows so thickly there that the sea surface sometimes looks more like a meadow than like open water. Naturally this region is a wonderful habitat for sea life and there the eels go to mate. In the fall, eels which are about ten years old, undergo physical and physiological changes. They stop eating as their stomachs shrink, and their reproductive organs expand. These mature specimens then move from their preferred freshwater habitats down streams to rivers, and from rivers to the sea. They proceed from far inland along the Atlantic coast from Mexico up to Labrador, from Greenland’s coast and Iceland, from the British Isles, from Scandinavia and from lands bordering the Mediterranean and Black Seas. As these eels converge on the Sargasso Sea, they show no specific preference to mate with specimens from their part of the world. Each female then lays up to twenty million eggs. These hatch into thin, flat, almost transparent creatures about one half cm long. As they move north in the Gulf Stream, those which mature first, apparently stop off in the fresh waters of North America. Others may take longer to mature, up to two or three years and these drift towards Europe. The American and European populations look different, but biologists think that genetically they may be almost identical. It is apparent that we know some of the story concerning eels but there are obviously many blanks yet to fill. What causes the eels to migrate to a common area in the open ocean? Why do they not spawn closer to their feeding grounds? Drifting towards coastal areas is obviously easy enough, but how do the eels navigate their way back to the Sargasso Sea? There obviously is more to freshwater eels than a tasty snack. Monarch butterflies One of the most amazing examples of navigation is that of the monarch butterfly. During the spring, these insects leave tiny stands of trees in Mexico where they spent the winter. They fly northeast to destinations throughout eastern North America. Then in the fall, several generations later, these butterflies head back to the very same stands of trees from which their great great grandparents had emerged the previous spring. Several questions naturally arise. It may be that day length triggers the instinct to fly southwest in the fall, but how do these tiny brains identify the appropriate direction? Laboratory studies have shown that adult butterflies emerge at dawn from the chrysalis. This time is apparently internalized within each insect’s 24 hour physiological clock. (Your own physiological clock tells you, for example, when it is time to sleep and time to eat.) It is the insect’s awareness of passing time which allows these butterflies to navigate with the sun as their reference point. As the sun moves across the sky, the butterflies automatically adjust their orientation to the sun according to the time of day and thus they maintain a constant southwest direction. If any butterflies are artificially caused to emerge from the chrysalis at a different point in the day, they cannot navigate according to the sun’s position and consequently they get lost. Imagine a navigating system that automatically adjusts for time of day! This is a fancy computer to cram into a very small insect brain. Obviously the whole system was designed to function in a sophisticated manner while using on a few simple cues. In the spring after over wintering, these very same butterflies will fly toward the northwest. Arctic birds In certain instances a much simpler navigating system than that of the butterflies may suit the needs of an animal. This situation applies to arctic birds on their annual migration south. Navigation apparently is most difficult near the poles since many useful parameters, like magnetic field, all converge. During the late summer of 2005, scientists carried out a study of arctic bird navigation. As flocks of birds passed over the Bering Strait between Alaska and Siberia, scientists briefly tracked them by radar. From hundreds of such tracks, the travel trajectories (direction) could be calculated. The scientists had calculated the various routes that birds would follow if they were using one or other navigational cues. If the birds were navigating by means of a magnetic compass, for example, they would proceed towards the northeast (not an ideal direction). If they used the sun as their reference point, adjusting their calculations according to time of day, they would proceed towards the east. However if they followed the sun without adjusting direction for time of day, they would proceed in a southeast direction. This was indeed the path these birds appeared to follow. The end result of this strategy is that their route then traces an arc, part of a great circle. Such a route is by definition the shortest distance connecting two points on the globe. For people relying on technology, a great arc requires continuous changes in compass direction. Navigating by compass (magnetic field) is longer but much easier. Obviously, however, one expends less energy on a shorter route. In the case of arctic birds, lacking complex computer programs, they nevertheless manage to follow a sophisticated path out of the arctic. Scientists cannot refrain from asking how these birds learned such a navigational strategy. Conclusion There is no doubt that tracking studies have revealed exciting details about animal navigation. In addition, physiological studies continue to give us glimpses into methods that these creatures use to plot their routes. But none of these environmental cues would be any help at all without senses designed to perceive them, and brains to interpret the data correctly, and to act upon it. Secular scientists may eventually describe the tracking mechanisms ever so precisely, but they will never be able to tell us why or how these remarkable designs were conferred on these creatures. Christians know. Dr. Margaret Helder is the President of the Creation Science Association of Alberta. This article first appeared in the January 2006 issue....

Red heart icon with + sign.
Documentary, Movie Reviews, Watch for free

FREE: Flight of the Butterflies

Documentary 2012 / 44 minutes RATING: 7/10 Equal parts detective story and nature documentary, Flight of the Butterflies tells the story of "Dana" and her offspring, beautiful monarch butterflies making their way across the United States. It also showcases the investigative work of biologist Fred Urquhart and his wife Norah, who spent their lives trying to discover where the butterflies were going on their yearly migration. The nature half is simply stunning, and deserves a widescreen TV viewing – you'd lose so much watching it on your phone. We get to follow Dana as she flutters from plant to plant, laying her more than 300 eggs, and get to tag along, too, as she flies as much as a mile up into the heavens. Then, when we eventually see one of Dana's grandchildren form her chrysalis, we get a peek inside: "Fed oxygen by hundreds of fine breathing tubes. her brain, heart and digestive track change shape and size. New powerful flight muscles develop, and compound eyes form. Long legs and steady wings complete the transformation." The caterpillar to butterfly transformation is astonishing – one creature becoming something else entirely! But it gets even crazier: while Dana didn't live all that long, and her daughter didn't either, they somehow manage to spawn a granddaughter that will look just like them, but be another sort of creature once again: Dana's granddaughter is a "super butterfly destined to live eight times longer" than either of the two previous generations! The mystery half is fun too. An actor familiar to many Canadians, Gordon Pinsent (Beachcombers, The Red Green Show) plays Fred Urquhart who recruits the help of regular folk – "citizen scientists" – all over the United States to help him tag, and then track the flight paths of monarch butterflies. After gathering this information for decades he can tell they fly south towards Texas, but where do these millions of butterflies go afterward? I won't spoil things: you'll have to watch it to find out. Caution The documentary opens with a quick nod to Darwin, with biologist Fred Urquhart declaring, "It has been said since Darwin's time that evolution has been written on the wings of a butterfly. I know my life has." Another similar sort of "nod" happens elsewhere, but the brilliant design evident in the monarch's lifecycle and remarkable migration far outshine these little mars. There are also a few mentions made of man-caused environmental issues that might impact the monarch, including a passing mention of global warming. But these are very brief, and the film is not any sort of anti-man screed. As with many a secular nature documentary perhaps the most notable caution is simply that in a film about a creature whose beauty and amazing lifecycle screams out the glory of its Creator, the film never gives God His due. But we can make up for this deficiency. Conclusion Fred and Norah Urquhart spent 50 years learning all about the monarch, and in this remarkable film we get to come along for that journey of discovery. This is a quiet film – there are no explosions to be found – so it isn't going to be to everyone's tastes. But maybe it should be – if the brilliance of the monarch butterfly doesn't fill us with awe at God's genius, maybe it's time we stopped watching so many car chases and superhero battles and sharpened up our sense of awe. Regardless, for the nature lover in your family this will be something special. You can watch the trailer below, and watch the film for free here. ...