Blood tests are useful tools for doctors and scientific researchers: they can reveal a lot about a body’s health. Usually, a blood sample is taken to get a picture of the large molecules that are ...

WAUCHULA, Fla. — Fossil hunters can sift through dirt and clay-like material at Bone Valley Experience to dig for a hidden treasure, and Sarah Bates knows exactly what she hopes to find. “I had three ...

Othniel Marsh and Edward Cope each discovered troves of dinosaur fossils in the 19th century—but grew obsessed with bringing each other down in the Bone Wars. Men unearth the giant bones of a mammoth ...

Dinosaurs liked it rough — and the fossils they left behind prove it. Top paleontologists have discovered that mating between some species of prehistoric behemoths was so violent that they literally ...

A group of researchers has estimated how long it took tyrannosaurus rex to reach its full size — and the time period is significantly longer than scientists previously believed. The dinosaur is ...

A groundbreaking study of Tyrannosaurus rex fossils has rewritten what humans know about these prehistoric predators and how long they lived millions of years ago. A study by three US researchers ...