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 ...

Mammals are animals that have hair, give birth to live young (except the platypus and spiny anteaters), nurse their young with milk produced by the mother, and control their body temperatures from ...

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 ...