A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.

Fossil remains of a large, now-extinct bird species have been discovered in Australia’s Boodjamulla National Park. The ground-dwelling species – Menura tyawanoides – is an ancient ancestor of ...

In the past couple of decades, several species have been driven to extinction thanks, in large part, to human interference. Sometimes that interference is direct, poaching for big game trophies or ...

From polygamous tree toads to heavy stick bugs, this year’s extensive new species discoveries are changing the way we see our ...