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Deep Sea Animals With Terrifying Adaptations
Crushing pressure, freezing cold, and total darkness have pushed deep-sea animals toward some of the strangest survival adaptations on Earth. Here are some of the most extreme.
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The Science Behind Animal Camouflage
From color-changing skin cells to light-bending crystals, camouflage in the animal kingdom relies on some genuinely different biological mechanisms depending on the species. Here's how it actually works.
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Animals Found Only in One Place on Earth
The aye-aye exists only in Madagascar, and the vaquita exists only in one stretch of Mexican coastline. Here's why some animals evolve to live nowhere else on the planet, and why that makes them so vulnerable.
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Animals That Glow in the Dark Naturally
From fireflies lighting up summer evenings to anglerfish hunting a thousand metres underwater, these animals produce their own light using nothing but chemistry. Here's how, and why.
Animals That Can Regrow Their Body Parts
Starfish can regrow an entire body from a single severed arm, and axolotls can rebuild whole limbs without scarring. Here's a look at nature's most capable regenerators, and how each one pulls it off.
Animals That Look Fake But Are Completely Real
From a sea slug that looks like a Pokémon to a bird that looks like a shoe, these animals seem too strange to be real, but every one of them is a genuine, documented species.
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The Animal That Can Survive Being Frozen Solid
The wood frog spends up to seven months a year completely frozen, with its heart stopped and most of its body turned to ice. Here's how it thaws out again every spring.
The Snail With an Iron Shell That Survives Volcanoes
The scaly-foot snail builds its shell out of actual iron and lives beside boiling volcanic vents nearly 2,000 metres underwater. Here's how it survives conditions that would kill almost anything else.
What Animal Has the Strongest Bite Force?
Saltwater crocodiles hold the record for the strongest bite force ever directly measured in a living animal. Here's how scientists measured it, and how it stacks up against lions, hippos, and great whites.
How Does Bioluminescence Work in Animals?
From anglerfish lures to glowing plankton, most of the light produced in the ocean comes from a single chemical reaction. Here's how bioluminescence actually works, and why so many animals rely on it.
Why Do Chameleons Change Colour?
Chameleons don't change color for camouflage the way most people assume. The real mechanism involves nanocrystals in their skin, and the real reason is mostly about communication.
How Do Electric Eels Generate Electricity?
Electric eels can deliver shocks of several hundred volts using nothing but modified muscle cells wired together like a living battery. Here's how the biology behind it actually works.
Why Are Pangolins the Most Trafficked Mammal?
Pangolins are the only mammals covered entirely in scales, and that single trait has made them the most heavily trafficked mammal on Earth. Here's why, and what's being done to protect them.
Can Tardigrades Survive in Space?
Tardigrades became the first animal proven to survive direct exposure to the vacuum of space. Here's how the tiny 'water bear' pulled it off, and what it couldn't survive.
Why Do Octopuses Have Three Hearts?
Octopuses pump blue blood through three separate hearts, and one of them shuts off whenever they swim. Here's the biology behind one of the ocean's strangest circulatory systems.
What Is the Strongest Insect in the World?
A beetle smaller than a fingernail can pull over a thousand times its own body weight. Here's why the horned dung beetle holds the title of strongest insect on Earth, and how its power was measured.
Why Do Mantis Shrimp Have the World's Best Eyes?
Mantis shrimp see the world in a way no other animal can match, with up to sixteen types of photoreceptors to our three. Here's what scientists know about how — and why — that vision evolved.
Can Axolotls Really Regrow Their Brains?
Axolotls don't just regrow legs and tails — they can rebuild damaged sections of their own brain. Here's what scientists have found about how far that ability really goes.
How Axolotls Regrow Entire Limbs From Scratch
The axolotl can regenerate lost legs, its spinal cord, and even parts of its brain. Here's what scientists have learned about how this salamander does it.
The Mantis Shrimp Has the Strangest Eyes on Earth
Mantis shrimp have up to 16 types of color receptors, compared to just three in humans. Here's what their extraordinary vision can actually do.
The Vaquita: The World's Most Endangered Marine Mammal
Fewer than 10 vaquita porpoises remain on Earth. Here's why this tiny porpoise is disappearing, and what's being done to save it.
How Octopuses Change Color Faster Than the Blink of an Eye
Octopuses can shift their skin color, pattern, and texture in an instant. Here's the science behind how their camouflage actually works.
The Strongest Animals in the World
From dung beetles to elephants, discover which animals pack the most power for their size and how scientists measure animal strength.
Coral Bleaching, Explained: Why Reefs Are Turning White
Coral bleaching has hit the Great Barrier Reef six times since 2016. Here's what actually causes it, and why back-to-back events are so dangerous.