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Unformatted text preview: More bone in lower jaw (heavy jaw) Teeth Small win area Smaller brain case Smaller sternum No unsinate processes-Key evolutionary innovations o Things that, once evolved, evolution can play with. o Allow for major adaptive radiation-Where does flight come from? o Its a mix of needing to go up, glide down, and go a little bit. o Not an individual reason, like the cursorial or arboreal hypothesis...
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- Spring '12