The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong. The teeth on T. rex ...

Whether you prefer the look of a classic, Gothic predator, or a more modern bloodsucker, you can never go wrong as a vampire on Halloween. Whichever direction you choose though, the most difficult ...

Given their huge size, there is no question as to why hippopotamuses are one of the most feared mammals. Apart from their bulky appearance, they also have an odd-looking mouth that features huge, ...

Killer whales, also known as orcas, are easily recognized by their stunning black and white appearance. These huge animals can reach up to 26 feet long and are actually the largest members of the ...

When I was in elementary school, I was taught that one of the ways to tell a reptile from a mammal was by looking at their teeth. Reptiles, like lizards and crocodiles, had a mouth full of nearly ...