Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study.

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more ...

The conservative justices appeared ready to side with the states. They emphasized that federal law has long allowed separate ...

Becky Pepper-Jackson is a 15-year-old in West Virginia who knows the upcoming sports season could be her last.