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

Some species officially bid us farewell this year. They may have long been gone, but following more recent assessments, ...

The world still holds its secrets. Hidden under wet rocks, in the ocean’s twilight crevices, and in the minutiae of the ...

Reports that a rare Bolivian killifish thought to be extinct has been found alive would be a landmark moment for conservation biology, but based on the material available here, I cannot verify any of ...

Curitiba, Brazil used to be forests, wetlands, fields and streams before it was developed over the last half-century. Gilberto Jacob via Unsplash As new species are discovered around the world, others ...

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 ...