Litoria tylerantiqua, a 55-million-year-old fossil, is Australia’s oldest known tree frog. It shifts the timeline for frog ...

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

Discover how a 55-million-year-old frog fossil is reshaping our understanding of Australia's evolutionary history.

A remarkably well-preserved fossil found in Spain is the most complete stegosaur skull ever discovered in Europe.

For the evolution of vertebrates, positive diversity dependent ... and resilience fashioned a singularly convoluted family tree. As Dr. van Holstein summarizes, “Perhaps most interestingly ...

He took his flats boat to Abaco with him and got his first job by walking out on a marina dock and casting his fly rod. “This ...

Khankhuuluu mongoliensis — its scientific name — is an evolutionary ancestor of the most famous tyrannosaur, the “tyrant ...

A new species of dinosaur that was probably a princely ancestor of T. rex, the king of the dinosaurs, has been identified ...

Scientists identified a hidden "sixth sense" in geckos that's upending up what we thought we knew about animal hearing.

The animals that plummeted 85 feet into Wyoming’s Natural Trap Cave provide a layered history of life dating back to the ...

The Komodo dragon, a venomous giant lizard native to Indonesian islands, faces endangerment with fewer than 6,000 remaining.