(Reuters) - Living among a small band of Neanderthals in what is now eastern Spain was a child, perhaps 6 years old, with Down syndrome, as shown in a remarkable fossil preserving traits in the inner ...

Feb. 2 (UPI) --To hunt successfully, cheetahs must keep their head still and eyes focused on the movements of their prey while running at high speed. How does the fastest animal in the world do it?

The first warm-blooded animals appeared abruptly 233 million years ago, according to clues hidden deep inside their ears. Before now, scientists estimated that warm-bloodedness, or endothermy, ...

Scientists have used CT scans to digitally reconstruct the brain, inner ear, and surrounding bones (known as the braincase) of two well-preserved Daspletosaurus specimens. This massive tyrannosaur ...