For most of human history, extinction has been understood as an immutable fact of nature—a one-way door that, once closed, could never be reopened. Species ...

We’re in a biodiversity crisis, but it's tough to compare it to past periods of mass death.

Just above two children per woman was considered the minimum to sustain a population—not anymore, according to new research.

To understand the overall extinction rate, researchers need to know how many species there are in the first place, Alroy said.

The present extinction rate of life on doesn't qualify as a mass extinction event yet — but current trends show that it eventually will, a new study finds.

Dark Extinction Has Scientists Worried. Here's What They're Doing About It Species are likely to die long before we have a chance to discover them. How can we ensure they're not lost forever?

About one in five graph readers categorically misinterpreted bar graphs that depicted averages. "These readers sketched all, or nearly all, of the data points below the average," said Wilmer.

They discovered that the average predicated rate for freshwater animals and plants today is three orders of magnitude higher than it was during the Cretaceous–Paleogene extinction event.

It could take Earth’s freshwater ecosystems millions of years to recover from the damage inflicted upon them by human interference, according to a new study that compared the modern day rate of ...

Scientists recently discovered that an extinction event that wiped out most of the planet's species nearly 250 million year s ago, happened more slowly on land than in the sea.