Scientists who famously discovered the lobe-finned fish fossil Tiktaalik roseae, a species with some of the clearest evidence of the evolutionary transition from fish to limbed animals, have described ...

Human beings have existed for 300,000 years and have managed to live in many unstable environments. We’ve survived ice ages, ...

Researchers have discovered a new species of large predatory fish that prowled ancient North American waterways during the Devonian Period, before backboned animals existed on land. The Academy of ...

A rare fossil fish scan reveals brain features and adaptations tied to the transition from aquatic to land animals.

“We call it a ‘fish-eat-fish world,’ an ecosystem where you really needed to escape predation,” said Dr. Ted Daeschler, describing life in the Devonian period in what is now far-northern Canada.

PHILADELPHIA (March 27, 2013) -- In 370 million-year-old red sandstone deposits in a highway roadcut, scientists have discovered a new species of armored fish in north central Pennsylvania. Fossils of ...

Scientists have unearthed South African fossils of prehistoric Devonian Period amphibians believed to be the earliest known four-legged vertebrates at a site called Waterloo Farm in Grahamstown. The ...

A long, long time ago — between 378 million and 375 million years ago — about half of all species on the planet vanished. The trigger for this mass extinction, one of five known in Earth's history, ...

An artist’s impression of Tutusius at Waterloo Farm. Illustration by Maggie Newman Some of our ancestors had four legs, a finned tail and lived in water. They were aquatic tetrapods which, after the ...

PHILADELPHIA (March 27, 2013)— "We call it a 'fish-eat-fish world,' an ecosystem where you really needed to escape predation," said Dr. Ted Daeschler, describing life in the Devonian period in what is ...