Because their relative isolation encourages speciation, oceanic islands are hotspots of biodiversity. Yet their relatively ...

Around 74,000 years ago, Mount Toba in present-day Indonesia unleashed one of the most powerful volcanic eruptions in Earth's ...

Ultimately, the extinction of humans "would reveal something about the way we treated the Earth," said Basmajian. "It would also show us that the world we have today can't survive without us and ...

Doomsday Clock shows humanity closer to extinction than ever, but scientists still optimistic It was a small change, but a frightening one. Last month, the "Doomsday Clock" was moved up to 89 ...

The endangered kakapo is a flightless bird native to New Zealand. Its population is growing, but its parasites have dwindled.

Today, human-caused extinction is speeding up. The dodo is one of the early entries on an already lengthy list. An additional million are on the verge.

Human populations need at least 2.7 children per woman—a much higher fertility rate than the 2.1 previously believed—to reliably avoid long-term extinction.