A new species of ancient dolphin has been discovered and it boasts "unique" tusk-like teeth that indicate the existence of a feeding strategy in marine mammals that was previously unknown to science, ...

So often when we think of our animal friends, we take it for granted that their species is a fixed, unchanging thing. Sometimes, it's worth taking another look at the fossil record. In a pair of ...

The world’s understanding of the Tyrannosaurus rex as a fearsome-looking predator with a face of razor-sharp fanged teeth may soon need to shift. Similar to humans, the T. rex had lips that concealed ...

T. rex teeth — possibly up to six inches long — were thought by many to be too big not to protrude. In recent years, paleontologists have debunked other stereotypical portrayals of the dinosaur. Some ...