Luz Catt

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Scientists pinpoint growth of brain’s cerebellum as key to evolution of bird flight

Digital reconstructions of endocasts of a woodpecker, Melanerpes aurifrons (top), and a troodontid dinosaur, Zanabazar junior (bottom). The blue area is the cerebellum. Credit: Amy Balanoff Evolutionary biologists at Johns Hopkins Medicine report they have combined PET scans of modern pigeons along with studies of dinosaur fossils to help answer an enduring question in biology:

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