Bird brains rooted in baby dinosaur skulls

Bird skulls resemble those of juvenile dinosaurs

source: Michael Marshall
New Scientist vol 214 no 2867, June 2nd 2012 p12

The skulls of adult birds resemble those of juvenile dinosaurs, and birds evolved from feathered relatives of velociraptor-type dinosaurs. Bhart-Anjan Bhullar and team from Harvard University, studied bird, dinosaur and crocodile skulls, and discovered that adult birds have brain cases accounting for more of the total volume of the skull, like juvenile dinosaurs. Birds that retained a juvenile skull shape could have bigger brains. Large brains allow them to see better when they fly. Evolutionary changes often result from changes in development, for example, Adult humans resemble juvenile chimps.