Dimetrodon, in particular, illustrates an early dental shift that mammals would later take to extremes. The ancient carnivore ...

As a master’s student at Indiana University a few years ago, David Grossnickle became fascinated with the evolution of early mammals. His dissertation project involved comparing the skulls of modern ...

Sabre-toothed predators -- best know from the infamous Smilodon -- evolved multiple times across different mammal groups. A new study reveals why: these teeth were 'functionally optimal' and ...

Well, there's actually an important trade off for this nuisance. Only a handful of mammals can regrow teeth multiple times, compared to the 50,000 species of reptiles and fish. Take geckos ...

We know these early teeth were simple ... Although plenty of mammals evolved teeth and tusks that grow continuously, a defensive strategy against wear and tear, humans did not.

and a diverse array of teeth -- incisors, canines, premolars, and molars. In the early Cenozoic era, after the dinosaurs became extinct, the number and diversity of mammals exploded. In just 10 ...

Eomaia, that early forerunner of placentals ... make it more highly adapted as a carnivore than any other known mammal." The teeth, explains Wroe, are "for butchery only. The animal would starve ...

Bats in the noctilionoid group, like Darwin’s finches, have evolved an impressive variety of jaw and tooth adaptations to ...