It turns out it does matter what you eat, especially to crocodylians — crocodiles, alligators and gharials — a species ...

All through geologic time there have been extinctions mostly occurring at a fairly stable background rate. Occasionally, far ...

Learn why a comprehensive comparison of crocodile skulls, teeth, and jaws hints that generalists, not specialists are best ...

The Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 ...

The Permian extinction saw the loss of 80 to 96 percent of all marine species. In the Cretaceous event, perhaps 60 to 75 percent of marine species disappeared. What caused these immense die-offs?

But occasionally, extinction rates have surged far beyond usual levels, driving mass extinction events that have reshaped the trajectory of life. After a year teaching an algorithm to differentiate ...

Nearly all the ... the two events occurred within 100,000 years of each other. Renne doubts that's a coincidence. But the Siberian Traps volcanoes didn't cause the extinction by swamping the ...

which occurred 445 million years ago and was the first of the big five mass extinction events in our planet's history. 75% of all species, particularly in the types of fish found in ancient seas ...

The fossil record—an incomplete archive of biodiversity, as not all organisms fossilize—has produced various estimates of background extinction rates, that is, the usual rate of species turnover in ...

Scientists predict that more than 1 million species are on track for extinction in the coming decades. But there’s still time to halt this crisis — and we need your help. Check out all the Center’s ...

And right now, we're in the middle of the sixth mass extinction event in the planet's 4.5 billion-year history ... was born 20 years ago and we're in the exciting stage of pulling it all together. We ...