Extinction Countdown

New research compiles the “heat tolerance” of 616 amphibian species — and reveals how much more we need to know.

These weasel-like small cats haven’t been documented in the country since 1986. A new study suggests it’s time to reintroduce them.

A rare “orchid of the falls” plant has been declared extinct after a hydroelectric dam destroyed its only habitat. Could others soon follow?

Bombs and bullets are just the beginning.

Will Russia’s invasion threaten not just innocent people but the country’s unique wildlife?

This year scientists identified birds, lizards, orchids and other species that have been lost. How many more will follow?

A new paper finds that we’re failing these “small-bodied mammals” — and that comes with a cost to ecosystems around the world.

The charismatic animals could serve as flagship species for ocean conservation, according to researchers, but only if we understand their extinction risks.

It wasn’t the Roman gladiators that did in this black-maned beast, but the exact date of its disappearance remains a mystery.

Despite their enormous ecological values, new research reveals we don’t understand how most arachnid species are faring right now — or do much to protect them.