Around 252 million years ago, Earth’s oceans became a lethal test of animal physiology. Nearly every marine species vanished, ...

A new Stanford-led study offers the clearest picture yet of how some ocean life survived our planet's biggest mass extinction ...

Scientists are increasingly worried we may be witnessing the start of the “sixth mass extinction” – the first to be caused by ...

Climate change threatens many plant and animal species not only when their habitats disappear as climatic conditions change, ...

With bright feathers that look painted on, colorful birds are typically pretty and charismatic poster species for ...

A squeaky frog that became an internet sensation is added to a global list of species at risk of extinction.

A Stanford-led study has provided the strongest evidence yet that warming oceans and declining oxygen levels caused Earth's ...

In contrast to those who resided in Siberia, Neanderthals who lived in what's now Belgium and France shortly before the ...

And it reveals a big problem with the nation’s approach to saving endangered species.

Why do beaches today have seashells from clams and snails instead of brachiopods? A new study suggests the answer lies in ...

A recent study has found a dangerous combination of fungus, parasites and other pathogens is posing a threat to the snake population in the Southeast.

The fins of the guitarfish are sold for hundreds of dollars in Asian markets to make soup, a trade pushing them toward ...