BERN, Switzerland (AP) — Nearly 300 Tyrannosaurus rex bones that were dug up from three sites in the United States and assembled into a single skeleton sold Tuesday at an auction in Switzerland for ...

From preserved plants to T. rex, the material found in these Late Cretaceous rocks has resulted in countless breakthroughs ...

NEW YORK (AP) — Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a ...

Blood vessel structures found preserved in a famous T rex fossil are helping scientists understand how dinosaurs healed from injuries. A study published recently in the journal Scientific Reports ...

Add Yahoo as a preferred source to see more of our stories on Google. This illustration shows a Late Cretaceous face-off between an adult Nanotyrannus (left) and two juvenile T. rex, with a sub-adult ...