Bird-brained: Parrots and crows have evolved ‘truly exceptional’ brain sizes
Bird-brained: Parrots and crows have evolved ‘truly exceptional’ brain sizes while pigeons and emus have the same brain-to-body ratio as dinosaurs did 66 million years ago Birds and dinosaurs had similar brain sizes around 66million years ago After the mass extinction of the dinosaurs birds evolved relatively bigger brains Body size of some birds got … Read more