The emergence of four-legged animals known as tetrapods was a key step in the evolution of many species today - including ...

Fossil claw prints found in Australia were probably made by the earliest known members of the group that includes reptiles, ...

Fossil tracks found in Australia push the origin of reptiles back by 40 million years, altering the timeline of tetrapod ...

"De-extinction" takes center stage as environmentalists express dismay over erosion of the Endangered Species Act ...

Oklahoma is often thought of as an ecological melting pot, where forests, prairies, and wetlands meet to provide habitat for ...

The Mississippi River is a mighty waterway. It carries hundreds of millions of tons of freight every year, is home to a ...

The origin of reptiles on Earth has been shown to be up to 40 million years earlier than previously thought -- thanks to evidence discovered at an Australian fossil site that represents a critical ...

The ancient footprints from Australia were found on a slab of sandstone recovered near Melbourne and show reptile-like feet ...

The creature could lay eggs on land, unlike amphibians. It was part of a large group known as “amniotes,” which would evolve ...

In other words, the appearance of reptiles—and by extension, the evolutionary branch that leads to humankind—gets pushed back ...

Embedded in the slab’s fine sandstone are delicate imprints: long toes ending in sharp claws, left by an animal that trotted ...

In a new court filing, the Trump administration says it will reissue an environmental impact statement that would allow the government to swap land with Resolution Copper at Oak Flat. The land ...