The closest living relatives of birds, crocodillian skeletons photographed at the Gallery ... has 'folds' which are often obstructed by a large blood vessel called the occipital sinus," says ...

“Bird brain” is often hurled at someone as an insult, but scientists have discovered that the brains of birds are so large that they ... the area inside a bird skeleton’s empty cranial ...

since larger birds have to resist higher levels of stress on their skeletons, the researchers found. "The evolution of wing ...