Hippos are some of the earth’s largest land animals. Their name derives from Greek when they were called “river horses,” although “river cows” might have been a better description. These ferocious ...

Here’s a look at 7 animals known for having the sharpest teeth in the natural world, with fascinating details on what makes ...

Just like human babies, puppies are born without teeth and develop a set of “baby” or deciduous teeth. By the time they are ...

Two new papers analyze fossils found in Canada and Kenya, respectively—vastly different environments for the preservation of ...

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 ...

Quick facts about whales. Where they live: In oceans around the world What they eat: A huge range of animals, from tiny plankton to giant squid How big they are: Between 7 and 100 feet (2 to 30 ...

While we often imagine large predators or grazing animals when thinking of creatures with many teeth, one tiny, slow-moving being outshines them all. This unheralded creature boasts a staggering ...

But these teeth, like most animal teeth, are composed of a substance called dentine, capped by a hard, thin covering of enamel. Tusks have no enamel, Dr. Whitney said, ...

Paleobiologists have long compared the shapes of fossil teeth to those of existing animals to make inferences about what prehistoric species ate millions of years ago. The new method builds on this ...

Not all saber-toothed animals were predators, fossils reveal Massive fangs weren't just for delivering ferocious blows. They were also used for courtship and other displays—even among herbivores.