Humans have many wonderful qualities, but we lack something that's a common feature among most animals with backbones: a tail. Exactly why that is has been something of a mystery. Tails are useful for ...

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 ...

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 ...

When biologist Kenro Kusumi opened the strange package in his mail, he found a pickle jar containing ethanol and a seemingly deformed alligator tail. At his Arizona State University lab, Kusumi ...

Add Yahoo as a preferred source to see more of our stories on Google. Like spider monkeys, our ancestors’ tails helped them stay balanced in trees (Getty Images/iStockphoto) For half a billion years ...

Overall, the muscle mass in T. rex 's tail has likely been underestimated by as much as 45 percent up until now. Gotta run! As for how T. rex 's tail muscles got so giant, Persons said the development ...

For half a billion years or so, our ancestors sprouted tails. As fish, they used their tails to swim through the Cambrian seas. Much later, when they evolved into primates, their tails helped them ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Humans have many ...