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

We’re just getting warmed up.

From the majesty of our feathered friends to the cultural cost of extinction, these new books help us examine the natural world.

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.

We’ve made a lot of strides in whale conservation, but climate change, plastic pollution and other dangers have emerged.

From climate change to wildlife trafficking, these new books tackle the toughest problems of the day, along with vital solutions.

New research has uncovered a forgotten species that went extinct under two centuries ago — probably due to colonialism.

These crimes threaten tens of thousands of species around the world, causing extinctions, hurting people and spreading disease.

A rampant trade in Asian birds for their beautiful songs is emptying forests of sound and life.

The Biden-Harris administration must act quickly to reverse and repair Trump’s environmental destruction. Here’s how to do it.