Flying dinosaur needed a bird's brain
Flight was built into the brain as well as the body of Archaeopteryx. The oldest known bird shares many skeletal features with its dinosaur ancestors, such as teeth and a long bony tail. Yet a CAT scan reveals that Archaeopteryx had the large brain and optic lobes of modern birds, not the brain of a dinosaur, says Angela Milner of the Natural History Museum in London, UK.
See also: Bird brain reveals flight secrets (BBC)