# What is animal adaptation?

An episode of [Science for Kids / Science's Not Boring: The Kids Science Podcast](https://invisiblenetwork.ai/podcast/1896928296), 24 Aug 2026, 12 min.

Audio: https://www.buzzsprout.com/2624612/episodes/19656935-what-is-animal-adaptation.mp3

Have you ever wondered how animals survive in places that would turn humans into popsicles or fry us like an egg? Join Mira and Finn on an epic science adventure as they uncover the wildest, most mind-blowing survival tricks on planet Earth! You won't believe what these incredible creatures can do to stay alive. Discover the amazing North American Wood Frog, a living ice cube that stops its heart and freezes solid all winter, only to thaw out and hop away in the spring! Travel to freezing blizzards to learn how ten thousand Emperor penguins create cozy ninety-eight-degree group hugs to stay warm. Then, cross the globe to the scorching Sahara Desert to bust a massive myth: camels don't store water in their humps, they actually store fat! You'll also meet super-fast ants wearing shiny, reflective heat suits, and the ultimate invincible microscopic water bear, the Tardigrade, which can survive being boiled, frozen, and even launched into outer space! Get ready for a wild ride full of cool science facts, bizarre body changes, and a fun quiz to test your extreme animal knowledge!

## Transcript

[0:00] SPEAKER_01: Welcome to Science Is Not Boring by Kidopoly.com.
[0:04] SPEAKER_01: I'm Mira.
[0:05] SPEAKER_01: And I'm Finn.
[0:06] SPEAKER_01: Before we dive in, we have a huge shout out today.
[0:10] SPEAKER_01: A big hello to Emiliano and his brothers Miguel and Matteo.
[0:14] SPEAKER_00: Hey guys! They are originally from New Zealand and now they live in Canada.
[0:19] SPEAKER_01: Exactly! They listen on road trips and at home.
[0:23] SPEAKER_01: This one is for the three of you.
[0:25] SPEAKER_01: And living in Canada, you guys definitely know a thing or two about freezing cold weather.
[0:32] SPEAKER_00: Oh yeah.
[0:33] SPEAKER_00: I'm already wearing a sweater just thinking about it.
[0:36] SPEAKER_01: Which is perfect, because today we are exploring how animals survive the absolute coldest and hottest places on Earth.
[0:44] SPEAKER_01: Places that would finish off any human in minutes.
[0:48] SPEAKER_00: Wait, you mean like polar bears and camels?
[0:51] SPEAKER_00: That kind of stuff.
[0:52] SPEAKER_01: Oh, we are going way weirder than that.
[0:55] SPEAKER_01: Finn, imagine an animal whose heart completely stops beating.
[0:59] SPEAKER_01: It turns into a literal block of ice all winter, and then in the spring, it just thaws out and hops away.
[1:08] SPEAKER_01: A living ice cube?
[1:10] SPEAKER_01: What is it?
[1:11] SPEAKER_01: It's called the North American wood frog, and that is just one of the incredible, mind-blowing tricks animals use to stay alive.
[1:19] SPEAKER_01: We're talking anti-freeze blood, hundred-degree huddles, and creatures wearing shiny heat suits.
[1:26] SPEAKER_00: Okay, we have to talk about this frozen frog first.
[1:29] SPEAKER_00: How does a frog turn into an ice cube and not die?
[1:33] SPEAKER_00: That sounds impossible.
[1:35] SPEAKER_01: Right?
[1:35] SPEAKER_01: If a human gets too cold, our cells freeze and burst, which is super dangerous.
[1:42] SPEAKER_01: But the wood frog, which lives in freezing forests across Canada and Alaska, literally fills its own blood with sugar.
[1:50] SPEAKER_00: Wait, sugar?
[1:51] SPEAKER_00: Like they eat a bunch of candy before winter.
[1:54] SPEAKER_01: Not exactly.
[1:55] SPEAKER_01: Its liver pumps massive amounts of glucose, which is blood sugar, into its cells.
[2:01] SPEAKER_01: This sugar acts like natural antifreeze.
[2:04] SPEAKER_00: So it doesn't freeze at all?
[2:06] SPEAKER_01: Well, up to 65% of the water inside the frog does freeze solid.
[2:12] SPEAKER_01: Its eyes turn completely white, and its breathing completely stops for months.
[2:17] SPEAKER_01: But the sugar keeps the important cells from bursting.
[2:21] SPEAKER_00: That is so gross.
[2:23] SPEAKER_00: But kind of genius.
[2:25] SPEAKER_00: Why do animals need these extreme superpowers anyway?
[2:28] SPEAKER_01: Because Earth is a planet of extremes.
[2:31] SPEAKER_01: Think about the Sahara Desert in Africa.
[2:34] SPEAKER_01: The average summer air temperature is over 100 degrees Fahrenheit.
[2:39] SPEAKER_01: And the sand itself can heat up to 140 degrees.
[2:44] SPEAKER_00: Ouch! 140 degrees?
[2:46] SPEAKER_00: That would literally burn your bare feet like a frying pan.
[2:50] SPEAKER_01: It absolutely would.
[2:51] SPEAKER_01: And on the flip side, down in Antarctica, winter temperatures regularly drop to minus 76 degrees Fahrenheit, with blizzard winds howling at over 120 miles per hour.
[3:05] SPEAKER_00: Okay, so if an animal doesn't have a giant puffy jacket or an air conditioner, how do they survive those places?
[3:11] SPEAKER_01: By evolving completely unique bodies.
[3:14] SPEAKER_01: And scientists have spent decades braving those freezing blizzards and scorching deserts just to figure out their secrets.
[3:22] SPEAKER_01: Let's travel to the freezing dark ocean around Antarctica.
[3:26] SPEAKER_01: Back in the 1960s, a biologist named Arthur DeVries was studying fish down there.
[3:32] SPEAKER_01: And he noticed something that made no sense.
[3:35] SPEAKER_01: What was it?
[3:36] SPEAKER_01: Giant sea monsters?
[3:38] SPEAKER_01: Even weirder! He was catching Antarctic toothfish in water that was 28.4 degrees Fahrenheit.
[3:46] SPEAKER_00: Wait, doesn't water freeze into ice at 32 degrees?
[3:51] SPEAKER_01: Fresh water does, but the salt in the ocean water lowers the freezing point.
[3:56] SPEAKER_01: So the ocean was still liquid, even though it was completely below freezing.
[4:01] SPEAKER_01: But fish blood isn't salty like the ocean.
[4:04] SPEAKER_00: Oh, so the fish should have been turning into ice cubes the second they swam.
[4:09] SPEAKER_01: Exactly! DeVries discovered that these tooth fish produce special glycoproteins.
[4:15] SPEAKER_01: It's a literal antifreeze protein in their blood.
[4:19] SPEAKER_01: The proteins wrap around tiny ice crystals that enter the fish's body and completely stop them from growing.
[4:26] SPEAKER_00: Wow, so they just swim around with anti-freeze blood?
[4:29] SPEAKER_00: That's epic! But what about animals above the ice, like penguins?
[4:34] SPEAKER_00: They don't have antifreeze blood, do they?
[4:36] SPEAKER_01: Nope.
[4:37] SPEAKER_01: Emperor penguins are the ultimate cold survivors, but they use physics and body heat.
[4:43] SPEAKER_01: They perform the ultimate group hug.
[4:46] SPEAKER_01: Up to 10,000 penguins will pack tightly together during winter storms.
[4:51] SPEAKER_00: 10,000 penguins in one giant pile?
[4:54] SPEAKER_00: How warm does that actually get?
[4:57] SPEAKER_01: Well, it's minus 76 degrees outside.
[5:00] SPEAKER_01: But right in the middle of the huddle, the temperature can reach 98 degrees Fahrenheit.
[5:06] SPEAKER_00: 98 degrees?
[5:08] SPEAKER_00: That's a hot summer day.
[5:09] SPEAKER_00: Wait, wouldn't they get too hot in their tuxedo feathers?
[5:14] SPEAKER_01: They actually do.
[5:16] SPEAKER_01: It gets so hot in the centre that penguins will start overheating.
[5:20] SPEAKER_01: They constantly shuffle like a giant slow-motion whirlpool, moving from the freezing outside edge into the warm middle and then back out to cool down.
[5:31] SPEAKER_00: Okay, I'm freezing just thinking about blizzards.
[5:34] SPEAKER_00: Take me somewhere really hot.
[5:36] SPEAKER_00: You got it.
[5:37] SPEAKER_01: Let's cross the globe to the burning sands of the Sahara Desert.
[5:41] SPEAKER_01: Meet the famous desert survivor, the camel.
[5:44] SPEAKER_00: Oh, I know all about camels.
[5:47] SPEAKER_00: They store gallons of water in those giant humps on their backs, so they can walk for weeks.
[5:52] SPEAKER_01: Actually, Finn, that is one of the biggest myths in science.
[5:56] SPEAKER_01: There is zero water stored in a camel's hump.
[6:00] SPEAKER_01: Wait, really?
[6:01] SPEAKER_01: If it's not water, what's in there?
[6:03] SPEAKER_01: It looks so heavy.
[6:04] SPEAKER_01: It's fat.
[6:06] SPEAKER_01: A healthy camel's hump can hold up to 80 pounds of fat.
[6:10] SPEAKER_01: The hump is purely an energy source, so their body breaks down that fat for fuel.
[6:15] SPEAKER_01: They survive long desert trips simply by being incredibly good at conserving water.
[6:21] SPEAKER_00: Whoa, so it's basically a giant jiggly snack pack to keep them energized on long trips.
[6:27] SPEAKER_01: Exactly.
[6:28] SPEAKER_01: And when they finally find a watering hole, a thirsty camel can drink up to 40 gallons of water in just 13 minutes.
[6:37] SPEAKER_00: 40 gallons?
[6:38] SPEAKER_00: Picture 40 milk jugs lined up on the floor.
[6:41] SPEAKER_00: In 13 minutes.
[6:43] SPEAKER_00: Ooh! Their bellies must be so incredibly sloshy.
[6:47] SPEAKER_01: They definitely puff up.
[6:49] SPEAKER_01: Now, look down at the desert sand.
[6:51] SPEAKER_01: It's 140 degrees, but sprinting across it is one of the fastest insects on Earth, the Saharan silver ant.
[7:00] SPEAKER_00: If the sand is hot enough to cook an egg, aren't their tiny ant feet burning off?
[7:04] SPEAKER_01: Yes, they can only survive outside for about 10 minutes a day.
[7:09] SPEAKER_01: To escape the heat, they run at a speed of 108 times their own body length every single second.
[7:16] SPEAKER_01: How fast is that compared to us?
[7:18] SPEAKER_01: If a human ran that fast, you would be sprinting at over 400 miles per hour.
[7:24] SPEAKER_01: Plus, they are covered in microscopic, triangle-shaped hairs that act like tiny mirrors, bouncing the sun's heat right back into the sky.
[7:34] SPEAKER_00: So nature literally made a super fast bug wearing a shiny spacesuit.
[7:38] SPEAKER_00: That is unbelievable.
[7:39] SPEAKER_00: Okay, all these extreme powers are so cool.
[7:42] SPEAKER_00: But why do human scientists spend so much time studying them?
[7:46] SPEAKER_00: Just because they look awesome?
[7:48] SPEAKER_01: They are awesome, but they also help humans solve major problems.
[7:52] SPEAKER_01: Remember Arthur DeVries and his Antarctic toothfish?
[7:55] SPEAKER_00: Yeah, the fish with the antifreeze blood.
[7:58] SPEAKER_01: Right! Medical researchers are studying those exact antifreeze proteins to see if we can use them to freeze human organs safely.
[8:07] SPEAKER_01: If it works, doctors could store hearts or kidneys for much longer, which would save thousands of lives during transplants.
[8:16] SPEAKER_00: Wait, fish blood could literally help a doctor save someone's life?
[8:20] SPEAKER_00: That is wild.
[8:21] SPEAKER_01: It totally is.
[8:23] SPEAKER_01: And engineers are studying the triangular hairs on the Saharan silver ant to design new building materials and fabrics.
[8:31] SPEAKER_01: Imagine a shirt that automatically cools you down in the summer heat by bouncing the sun away, no electricity needed.
[8:38] SPEAKER_00: I would definitely buy a silver ant t-shirt.
[8:41] SPEAKER_00: Okay, time for some rapid-fire fun facts.
[8:44] SPEAKER_00: Hit me.
[8:45] SPEAKER_01: Did you know there are tiny bright blue fish called Death Valley pupfish that live right in Death Valley, California?
[8:53] SPEAKER_01: They survive in shallow pools of water that can get as hot as 100 degrees Fahrenheit.
[8:59] SPEAKER_01: A fish swimming in a literal hot tub, I'd be boiled.
[9:03] SPEAKER_01: And the ultimate extreme survivor is a microscopic creature called a tardigrade, or water bear.
[9:09] SPEAKER_01: They can survive being boiled at 300 degrees, frozen to almost absolute zero, and they can even survive floating in the vacuum of outer space.
[9:19] SPEAKER_00: Floating in space?
[9:21] SPEAKER_00: That's it.
[9:22] SPEAKER_00: Animals are officially invincible.
[9:24] SPEAKER_00: We don't stand a chance.
[9:26] SPEAKER_00: Alright, Finn, time for the quiz! Are you ready?
[9:29] SPEAKER_00: Okay, I'm ready.
[9:30] SPEAKER_00: Hit me with the hard stuff.
[9:32] SPEAKER_01: First question.
[9:33] SPEAKER_01: What percentage of a wood frog's body water can freeze solid during winter?
[9:42] SPEAKER_01: Next one.
[9:44] SPEAKER_01: How hot can the inside of an Emperor Penguin huddle get in Fahrenheit?
[9:52] SPEAKER_01: Question three.
[9:54] SPEAKER_01: What is actually stored inside a camel's hump?
[10:01] SPEAKER_01: Here's number four.
[10:03] SPEAKER_01: What shape are the tiny reflective hairs on the Saharan silver ant?
[10:11] SPEAKER_01: Last question.
[10:13] SPEAKER_01: What is the name of the Antarctic fish that has literal antifreeze in its blood?
[10:22] SPEAKER_01: Great job! Let's see how you did.
[10:26] SPEAKER_01: The first answer is up to 65% of the woodfrog's water can freeze solid.
[10:32] SPEAKER_01: For question two, the inside of the penguin huddle can reach a cozy 98 degrees Fahrenheit.
[10:40] SPEAKER_01: Number three, the answer is a camel's hump stores fat, not water, up to 80 pounds of it.
[10:48] SPEAKER_01: Question 4.
[10:50] SPEAKER_01: The ants' hairs are shaped like microscopic triangles to reflect the heat.
[10:55] SPEAKER_01: And the final answer is the Antarctic toothfish.
[10:59] SPEAKER_00: I still can't get over that the penguins get up to 98 degrees in the middle of a freezing blizzard.
[11:06] SPEAKER_00: I need to invent a penguin huddle jacket.
[11:09] SPEAKER_01: Right?
[11:10] SPEAKER_01: Human technology is cool, but nature has the best technology of all.
[11:15] SPEAKER_00: If you guys loved learning about frozen frogs and shiny ants as much as I did, please leave us a five-star review.
[11:21] SPEAKER_01: Yes, rate us five stars.
[11:24] SPEAKER_01: Just like a heavy five-star camel hump full of energy.
[11:28] SPEAKER_01: It's super easy.
[11:29] SPEAKER_01: Just scroll down on your podcast app and tap those five stars.
[11:33] SPEAKER_00: Oh, and don't forget to head over to our site kidopoly.com.
[11:37] SPEAKER_00: We've got tons of fun learning games and activities there.
[11:41] SPEAKER_00: It's awesome.
[11:42] SPEAKER_01: It really is like our own little science playground at kidopoly.com.
[11:47] SPEAKER_01: And if you want a shout out on the show like Emiliano, Miguel, and Matteo got today, or if you just want to say hi, send us an email at hello at kidopoly.com.
[11:57] SPEAKER_00: We love hearing your questions and your favourite extreme animals.
[12:01] SPEAKER_01: Thanks for exploring with us.
[12:03] SPEAKER_01: See you next time on Science is Not Boring.

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