Since the first sharks emerged in the world’s oceans nearly half a billion years ago, the world has gone through five major ...

Over the past 100,000 years, Australia and New Guinea's large animal communities have been disrupted by extinctions and ...

Ultimately, the extinction of humans "would reveal something about the way we treated the Earth," said Basmajian. "It would also show us that the world we have today can't survive without us and that ...

A first-of-its-kind study traces the rise of ant- and termite-eaters, revealing how mammals returned to the evolutionary table — at least a dozen times — to hone traits for feasting on the social ...

Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

Some 252 million years ago, almost all life on Earth disappeared. Known as the Permian–Triassic mass extinction – or the Great Dying – this was the most catastrophic of the five mass ...

Saiga antelopes, among the most ancient living mammals, are set to be reintroduced to China 75 years after they went extinct in the region, thanks to a donation of 1,500 wild individuals from ...

This projection surpasses all documented bird extinctions since 1500, highlighting the severity of potential losses. A significant international study led by University of Reading scientists, ...

The loss of unique birds like the bare-necked umbrellabird, helmeted hornbill, and yellow-bellied sunbird-asity would shrink the variety of bird forms that support ecosystems. This projection triples ...

What’s Changed—and What Hasn’t—Since the EPA’s Endangerment Finding A scientist-authored brief played a role in the 2009 determination that greenhouse gases endanger public health.