Since the first sharks emerged in the world’s oceans nearly half a billion years ago, the world has gone through five major ...

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 that ...

And, those like Ceballos who argue a major mass extinction has already begun, point to calculations that indicate we could reach that grim, 75 percent mile marker in just a few centuries.

Two nearby explosive massive star deaths, or supernovas, may have triggered mass extinction events in Earth's distant past, new research suggests.

Science Biology The remote locale that shielded plants during Earth’s biggest mass extinction About 252 million years ago, 80 to 90 percent of life on Earth was wiped out.

The sixth mass extinction isn’t a distant threat—it’s happening now. Species are vanishing at an alarming rate due to habitat loss, climate change, and human activity. This video explores ...

Life on our planet has experienced many mass extinctions over its 4.5 billion years. Scientists see evidence for at least five major episodes that eradicated creatures great and small. And many ...

A barrage of intense, wild swings in climate conditions may have fueled the largest mass extinction in Earth’s history. A re-creation of how ancient sea surface temperatures, ocean and ...

Paleontologist Ken Lacovara is founder of a new museum and fossil park in New Jersey where visitors can see how dinosaurs lived 66 million years ago before an asteroid wiped out 75% of life on earth.

The disappearance of species is destructive, but it’s also one of the most natural, creative forces on Earth.

If we continue on our current trajectory, the sixth mass extinction is inevitable and the times we're living through now will be part of that geological period.

Now, scientists say the Earth is in a sixth mass extinction — but this time, it’s because of humanity. The very term “sixth mass extinction” used to be controversial among experts.