A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...

We can study animals from all over the world thanks to science, but what about those that no longer exist? The list of extinct mammals could go on for ages, but each animal has a unique story. With ...

Scientists announced on March 5, 2026, that they have identified an entirely new genus of mammal called Tous, a group of ...

The Australian platypus is one of Earth’s most unusual creatures — but there was a time when it might not have stood out in a crowd. In roughly 100-million-year-old rocks in Australia, scientists have ...

From whale songs to lion roars, animals have evolved to stretch their voices across distances so that friends—and sometimes foes—can hear them. Each sound is coded with messages like "Come here!" ...