Penguins, for instance, can't fly, but they swim in a way ... For newly flightless birds, maintaining a flight-friendly skeleton is a bigger unnecessary cost than keeping some of their old ...
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Largest study of its kind proves 'bird brain' is a misnomerIt's difficult to know what birds "think" when they fly, but scientists in Australia ... digital "endocasts" from the area inside a bird skeleton's empty cranial space. Published in Biology ...
After losing the ability to fly, birds lose those feather features in ... feathers — so evolution “prioritises” changing the skeleton before the majority of the feathers.
Penguins, for instance, can't fly, but they swim in a way ... For newly flightless birds, maintaining a flight-friendly skeleton is a bigger unnecessary cost than keeping some of their old ...
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