Scientists brought to life the silent, sleeping songs of two great kiskadees. Andrej Chudý via Flickr under CC BY-NC-SA 2.0 DEED While birds are fast asleep, their brains remain active, firing off ...
The reorganization of neural activity during sleep helps young songbirds to develop the vocal skills they display while awake. Practice, or auditory feedback, may also play a role in learning.
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