A new study of Tyrannosaurus rex's muscular tail suggests that the dinosaur was one of the world's fastest-moving hunters. The study, published in The Anatomical Record, shows that T. rex's long tail ...

We explore the incredible strength and athleticism of kangaroos - animals built for power, speed, and survival. From their massive hind legs to their muscular tails, every part of a kangaroo’s body is ...

Feathered dinosaurs might have used muscular tails to shake tail feathers and lure the opposite sex, researchers say. Scientists analyzed 75-million-year-old fossils of feathered, two-legged dinosaurs ...

Male kangaroos regularly engage in intense physical fights that determine dominance within the group. These confrontations involve grabbing, pushing, and powerful kicks delivered with both hind legs.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. TOKYO — If you’re prone to tripping or ...

Researchers Sumika Kato, Takeo Kubo, and Taro Fukazawa of the University of Tokyo have discovered that c1qtnf3, a secreting factor, namely a protein molecule that is secreted by a cell and influences ...