There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land predator of all time. But the question of how quickly T-rex achieved its ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study. Scientists have long counted annual growth rings in fossilized ...

The study, published in PeerJ on Wednesday, analyzed bone samples from 17 Tyrannosaurus rex specimens using advanced microscopic and statistical techniques. Lead author Holly Woodward, a professor of ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of Tyrannosaurus rex to estimate how old the giant carnivores were when they died and ...

The largest-ever analysis of Tyrannosaurus rex fossils suggests the giant and fierce Cretaceous predator was a late bloomer, taking 35 to 40 years to reach maturity. Based on studies done two decades ...

Babies and very young sauropods—the long-necked, long-tailed plant-eaters that in adulthood were the largest animals to have ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist’s rendering of a Tyrannosaurus rex. (ROGER HARRIS/SPL/Getty Images) Dinosaur bones are like trees—every year is represented ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

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 ...

WASHINGTON, Jan 15 (Reuters) - There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land predator of all time. But the question of ...