A Mazon Creek fossil shows a horseshoe crab riddled with pits, likely from microbes or parasites, revealing a ...

Some members of the sea cow species called dugongs spend their days feasting on seagrass in the Persian Gulf. By doing so, ...

Around 56 million years ago, Earth suddenly got much hotter. Over about 5,000 years, the amount of carbon in the atmosphere ...

The snakes stayed large and thrived even when cooling temperatures and shrinking habitats killed off other giant reptiles ...

Learn how chemical clues reveal a mosasaur was hunting in freshwater rivers as the Cretaceous seaway receded.

In a new study published in The Astrophysical Journal, a group of researchers from the University of Colorado Boulder ...

Meet Salwasiren qatarensis, a small, ancient sea cow species whose fossils were found in Qatar, in one of the world’s biggest ...

Giant anacondas grew large early and kept that size for millions of years, surviving climate shifts and habitat changes ...

WINONA, Minn. — It was a dinosaur that once roamed the Earth 66 million years ago, and now a big piece of it sits housed in a ...

How far back in evolutionary history does kissing go? Through phylogenetic analysis, an international team of scientists ...