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 ...

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 ...

A new study reveals how some mammals evolved nature’s most impressive chompers (which are not always used for chomping). By Asher Elbein Elephants have them. Pigs have them. Narwhals and water deer ...

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

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 ...

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 ...

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 ...

The other day, my son had to come up with some questions about space for a science class assignment. His favorite, and rightfully so, was: Why does the sun look yellow, but stars that are farther away ...