Dinosaurs would still be around today, and humans never would have emerged, if an asteroid hadn't struck Earth right when it did 66 million years ago.
A newly discovered dinosaur species offers hints that feathers were much more common among the ancient beasts than once thought.
Sure, we're all in love with the cuddly, takin'-it-easy sloths of today, but what did they look like in a land far, far back in time?
Hefty polar bears, which love to sink their teeth into greasy blobs of fat, could hold the key to avoiding heart disease. Continue reading →
Dino claw types changed a lot as these animals evolved into modern birds.
The musky rat-kangaroo prefers no place other than home, which could put it at risk.
Hamsters, squirrels, platypuses, chipmunks, and some primates can store food in their cheeks! The storage facility's undeniably cute, but, beyond cuteness, why the heck do these critters have cheek pouches?
Evolutionary adaptation keeps vital organs from crushing their lungs.
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