Extinction

More than one in five of the world’s reptile species are threatened with extinction, researchers have determined in a new paper that marks the culmination…

One of the most contentious questions in evolutionary biology is, how did the Amazon become so rich in species? A new study focused on birds examines how the…

The partially fossilized remains of a giant extinct crocodilian that could have been ritualistically beheaded explain how modern crocodilian species may have…

If we did bring extinct animals back into modern ecosystems, we may end up running into other serious problems, says Bruford. Mammoths are huge wide-ranging…

This story originally appeared on Atlas Obscura and is part of the Climate Desk collaboration.At first glance, there's nothing remarkable about Mexico’s…

Earth was warmer 34 million years ago—and wonkier. The Pangea supercontinent had split up. The dinosaurs were long gone. But Antarctica contained…

For decades, people across the world have wondered if there was a possibility to bring back the hundreds of species lost to extinction. Now, a group of…

This story originally appeared in The Guardian and is part of the Climate Desk collaboration.A third of shark and ray species have been overfished to near…

Some 65 million years ago, a 10-km-wide asteroid crashed into Earth near what is today Mexico. It triggered a mass extinction. Nearly 75 percent of life —…

Deciduous forests are made up of many different kinds of trees that lose their leaves every winter—oak, birch, ash, maple, poplar. When an ash tree…