A wave of new research is forcing paleontologists to reconsider a basic question about life on Earth: when did the first mass ...

Waves of extinction have ripped through life on Earth over and over again during its long history. The non-avian dinosaurs ...

The West Texas desert has a surprising feature: a prehistoric ocean reef. There is a surprising natural wonder in the middle of the vast West Texas desert: a prehistoric ocean reef built from the ...

"Specifically, the impact of their extinction may not just be observable by the disappearance of their fossils in the rock record, but also by changes in the sediments themselves." Dr. Weaver says the ...

Add Yahoo as a preferred source to see more of our stories on Google. Sharks might be the all time bullet-dodging champions. They’ve been around for about 450 million years, longer than trees, longer ...

More than 250 million years ago, life on Earth faced its most devastating crisis — a global event so severe that it wiped out nearly three-quarters of life on land and an even larger share in the ...

The collapse of tropical forests during Earth’s most catastrophic extinction event was the primary cause of the prolonged global warming which followed, according to new research. The Permian–Triassic ...

Add Yahoo as a preferred source to see more of our stories on Google. Brown dwarfs are stellar misfits — too massive to be planets, too lightweight for nuclear fusion. If Nemesis exists, it’s ...

Simultaneous explosions of stars, called supernovae, may have led to one of Earth's mass extinctions 359 million years ago, according to new research. Several global extinction events occurred during ...