Animal Kingdom
Strange animal behaviors, unique species, and mind-bending evolutionary adaptations.
Did You Know?
The horror frog breaks its own bones to create claws.
Also known as the hairy frog, this species deliberately breaks its own toe bones to create claws that...
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The sea cucumber can eject its internal organs as a defense mechanism.
When threatened, sea cucumbers can violently contract their muscles and expel their internal organs through their anus. These...
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The Antarctic blackfin icefish has clear blood.
These fish have evolved to live without hemoglobin, the protein that makes blood red and carries oxygen. Instead,...
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Koalas have fingerprints nearly identical to human ones.
Koala fingerprints are so similar to human prints that they can sometimes be confused at crime scenes. These...
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Sloths are so slow that algae grows on their fur.
The green tinge often seen in sloth fur is actually algae that grows there, enabled by special grooves...
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The cookie-cutter shark removes perfectly circular chunks from its prey.
This small shark feeds by attaching its suction-cup-like lips to larger animals and rotating to remove a plug...
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Some caterpillars can whistle as loud as a car alarm.
The Walnut Sphinx caterpillar can force air through specialized holes in its body to create a whistling sound...
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The oilbird navigates through caves using echolocation like bats.
Despite being more closely related to nightjars than bats, these birds have independently evolved the ability to echolocate....
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The mantis shrimp can punch with the force of a .22 caliber bullet.
Their raptorial appendages can accelerate with the force of a gunshot, reaching speeds of 50 mph and creating...