White rhinos rank as the second-largest land mammals, right after elephants ... and have been classified as vulnerable on the IUCN Red List for Threatened Species for nearly 40 years.

Some mammals found in Britain such as squirrels scramble around the forests. Others stand tall with giant antlers like the red deer, Britain’s largest land mammal. Perhaps you’ve seen ponies ...

Understanding human evolution through the study of whale evolution Brief definition and history of mammals How did land-based mammals return to the sea? Fossils from "transitional species" trace ...

The new, more humid subtropical conditions nurtured abundant palms and guavas. Land mammals responded in kind, radiating and diversifying into many new forms. As the climate cooled and dried ...

Call it an unfinished story, but with a plot that's a grabber. It's the tale of an ancient land mammal making its way back to the sea, becoming the forerunner of today's whales. In doing so ...