Extinction is a natural part of life on Earth. But occasionally, extinction rates have surged far beyond usual levels, driving mass extinction events that have reshaped the trajectory of life. After a ...

They noted that the wide time intervals encompassed mass extinctions. The authors suggest that this death-like survival state could have helped tardigrades survive several major extinction events ...

The world has experienced many periods of mass extinction caused by a variety ... with climate change is widely agreed to be the biggest threat to species survival. There are now 41,415 species ...

The current mass extinction differs from all others in being driven by a single species rather ... and maintain large herds of domestic cattle. The third and largest wave began in 1800 with the ...

Scientists from New York University have found that mass extinctions of land-based animals are more predictable than previously thought, and occur roughly every 27 million years in a cycle likely due ...

This is possibly the best known of the five largest mass extinction events to effect Earth. The devastation caused by the impact included massive tsunami-like surges, thus-far known only from marine ...

“Surprisingly, we found that not only the largest of all vertebrate animal species are most threatened ... Ripple and his team created a database to examine the correlations between body mass, range ...

"Welcome to the Black Triangle," said paleobiologist Cindy Looy as our van slowed to a stop in the gentle hills of the northern Czech Republic, a few miles from the German and Polish borders.

“One of the largest effects of warming on the ocean ... Kentaro Ohno CC BY 2.0 As with all mass extinctions, of course, paleontologists have long been puzzled by why some groups of living ...

This story appears in the October 2019 issue of National Geographic magazine. Some scientists contend that we’re heading toward what would be the sixth mass extinction in the history of life on ...