At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched ...

A new study reveals the surprisingly convergent evolution in the inner ear of mammals. An international research team showed that a group of highly divergent mammals known as Afrotheria and distantly ...

Long after an animal’s soft tissues have vanished, its skull still carries a blueprint of how it sensed the world. For extinct mammals, those bony clues now show that noses were not just prominent ...

Illustration showing Repenomamus robustus as it attacks Psittacosaurus lujiatunensis moments before a volcanic debris flow buries them both, ca. 125 million years ago. (Michael Skrepnick via ...

A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan ...