Animal populations have fallen by 73% in some species over the past 50 years. Are we on a fast track to widespread species ...

Scientists Found What May Be Earth's First Mass Extinction and It Was More Catastrophic Than Anyone Realized ...

This advancement could help scientists understand how oceans responded to past warming and oxygen loss. Phys.org reported ...

Researchers identified an early mammal ancestor whose eggs may have helped it survive the Great Dying 250 million years ago.

Add Yahoo as a preferred source to see more of our stories on Google. After an ancient extinction killed about 85% of marine species, survivors in isolated refuges helped jawed vertebrates diversify ...

In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

Around 250 million years ago, one of Earth’s largest known volcanic events set off The Great Dying: the planet’s worst mass extinction event.... How did these species survive mass extinction events?

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, and shallow seas shrank fast. Ocean chemistry also shifted hard. In what ...