A paleontologist was trying to locate the site of a famous 1908 discovery when a rancher in Wyoming shared an important clue.

For many years, paleontologists have debated about whether there was a smaller relative of the Tyrannosaurus rex, or if those ...

As the Saharan sun rose on my waylaid team, one morning in September 2022, it seemed to burn with particular intensity. For nearly three weeks we’d been holed up in a mud-walled compound in the oasis ...