Originating 95 million years ago during the Cretaceous Period, the Spinosaurus mirabilis' environment was believed to be ...

A new species just turned up in an Australian cave. It has teeth, claws, and a see-through body.

Scientists found a 307 million-year-old fossil, Tyrannoroter heberti, revealing one of the earliest known land vertebrates ...

The 300 million-year-old Tyrannoroter heberti had an extra set of conical-shaped teeth, indicating it likely ate plants. It’s one of the earliest species to do so.

Across the United States, a quiet biological invasion is reshaping ecosystems, straining farms and fisheries, and forcing officials into a costly game of catch-up. Scientists now warn that a growing ...