A study of fossil teeth from China shows early mammals got bigger before their diets became specialized after the ...

Add Yahoo as a preferred source to see more of our stories on Google. Despite their underwater habitat, whales are mammals. Mammals are not solely terrestrial; some, including whales and dolphins, are ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research led by the University of Bristol has revealed. The study, ...

The naked-mole rat is one of the strangest mammals for a few reasons, such as being cold-blooded. Read here to learn more.

Despite their underwater habitat, whales are mammals. Mammals are not solely terrestrial; some, including whales and dolphins, are fully aquatic the University of Michigan Museum of Zoology reports.