Read on for some chilling curiosities from the creatures of the Smithsonian’s National Zoo and Conservation Biology Institute ...

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly ...

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable and permanent ones. But humans aren't the only animals capable of shedding ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In prehistoric communities across what is now northeastern Europe ...

No cat is quite like Smilodon. This Ice Age predator, which could exceed the size of the largest living tigers, relied on incredible limb strength to grapple prey to the ground before sinking ...

Peek inside a few animal mouths and you'll see evidence of evolution's finest work. Take snakes, whose teeth are needle-thin and spiked with venom — excruciatingly efficient instruments for killing ...

From their forever-growing front teeth to their inflatable cheeks, there are many funny hamster facts that you (or the kids) may not have come across before. But if you’ve got some animal lovers who ...

Ancient teeth reveal that flexible feeders survived past climate shocks, while habitat specialists rapidly declined.

An artist’s view of what the area of the Zvejnieki cemetery (northern Latvia) might have looked like when animal parts were processed in the cooking pits. The research centers on the Zvejnieki ...