Mitochondria are the body's "energy factories," and their proper function is essential for life. Inside mitochondria, a set ...

Researchers have identified how thyroxine, a human thyroid hormone, can positively influence the life-critical calcification ...

Greenland sharks live for centuries with slow heartbeats and metabolism. Scientists study their longevity secrets.

Research into the intestinal cells of Burmese pythons has revealed the existence of a previously unknown cell type, ...

A newly discovered cell helps pythons digest entire skeletons—and might be present in other bone-eating predators, too.

At a remote bone bed in Arizona, dense with fossils dating back around 209 million years, a Smithsonian-led team of ...

In vertebrates, both structural and functional asymmetries have been linked to improved performance during simultaneous tasks and enhanced social coordination.

Buried for 209 million years, a tiny flying reptile and its ancient neighbors just emerged from Arizona’s Triassic past.

This ancient reptile’s jawbone was unearthed in Arizona in 2011 and was confirmed to be a new species with the aid of modern scanning technology.

New research finds that the global decline of scavengers like hyenas and vultures is putting ecosystems—and human health—at ...

Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.