The length of your arms and legs could help determine your risk for developing Alzheimer's disease and other forms of dementia . Researchers reporting in the May 6 issue of Neurology say that ...

With a 45-foot length and a 5-foot-long skull, a T. rex's 3-foot-long arms would be the equivalent of a 6-foot human with 5-inch arms. Other hypotheses to explain the short limbs include their use ...

The T.rex's short arms were a natural evolutionary process that helped prevent their accidental amputation, says Padian's theory, based his story on existing knowledge of T.rex's social structure.

Why the T-Rex Had Tiny Arms Revealed For as long as kids have known that dinosaurs existed, the Tyrannosaurus rex has reigned supreme […] ...

This dinosaur’s arms and hands had become so reduced that it is difficult to imagine what they could have possibly done with them other than impotently flap them around. We may never know for sure.

April 5 (UPI) --The Tyrannosaurus rex's arms may have evolved to become extremely short to lower the risk of bites while feeding in packs, a new study says. A 45-foot-long T. rex may have 3-feet ...