The researchers analyzed rare fossils of hatchling birds found in northern Alaska, which offered the earliest evidence of the ...

For over a century, scientists have wrestled with one of biology’s most fundamental mysteries: how the first animals evolved.

The Chicago Archaeopteryx provides rare 3D insights into skull evolution, soft tissue structure, and the first evidence of ...

Fossil tracks from Australia reveal reptiles appeared 40 million years earlier than thought. The origin of reptiles on Earth may be up to 40 million years earlier than previously believed, based on ...

Paleontologists assumed just one dinosaur egg type lay buried in Utah's Cedar Mountain Formation. Then they hit the jackpot.

The fossils of ancient salamander-like creatures in Scotland are among the most well-preserved examples of early stem tetrapods -- some of the first animals to make the transition from water to land.