Mass Extinction, Earth

The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...
The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.
Is the biosphere today on the verge of anything like the mass extinctions of the geological past? Could some equivalent of meteorite impacts or dramatic climate change be underway, as humankind's ...
We're in the midst of the Earth’s sixth mass extinction crisis. Harvard biologist E. O. Wilson estimated that 30,000 species per year (or three species per hour) are being driven to extinction.
"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.
The roughly six-mile-wide asteroid slammed into the ... the culprit behind the mass extinction was a rare carbonaceous asteroid from beyond Jupiter. Scientists came to the conclusion after ...