A study by a researcher in the Syracuse University College of Arts and Sciences offers new clues to what may have triggered the world's most catastrophic extinction, nearly 252 million years ago.
The most catastrophic mass extinction on Earth took place about 252 million years ago – at the boundary between the Permian and Triassic geological periods. Up to 90 percent of the marine species of that time were annihilated. ...
Today, mammals and birds are the only true warm-blooded animals. They are called endotherms, meaning they produce their body heat internally.
Most scientists agree that a "mass extinction" event is underway with the Earth's wildlife disappearing at an alarming rate, mainly due to human activity.
Of all the species that have ever lived, more than 99% are now extinct. Most of them quietly disappeared during periods of "background extinction", whereby a handful of species become extinct every 100,000 years or so.
At the Triassic-Jurassic boundary, 200 million years ago, some 60 percent of species living on Earth disappeared. Scientists suspected that magmatic activity and the release of CO2 were responsible for this environmental ...
During an expedition to the Krasnoyarsk Territory, scientists from Tomsk State University and St. Petersburg State University (TSU and SPBU), discovered the remains of a previously unknown mammal, the baidabatyr.
Researchers in the U.S. and Japan say they may have found the cause of the first mass extinction of life on Earth.
In 2016, researchers published "slam dunk" evidence, based on iron-60 isotopes in ancient seabed, that supernovae buffeted the Earth—one of them about 2.6 million years ago. University of Kansas researcher Adrian Melott, ...
Earth's bedrock was severely beaten by hothouse climate conditions during one of the planet's mass extinctions some 200 million years ago. But the process also allowed life to bounce back.