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

A Smithsonian-led team of researchers have discovered North America's oldest known pterosaur, the winged reptiles that lived ...

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

Shrimp possess a unique anatomical feature: their heart resides in their head, a surprising adaptation suited to their open ...

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

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.

When carnivores that roam our Earth feast gleefully on the flesh of their prey, the hard, unpalatable bones are usually left ...

What is the Tully monster? Learn more about the near-nameless fossil, and why experts still can't agree on its classification ...

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

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying reptile, that reveal a time of transition when venerable lineages that were ...