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We used to think having a distinct left and right brain was something unique to humans. But brain lateralization has now been found in everything from chickens to spiders! Does this change our theories for why some brains work that way?

Hosted by: Anthony Brown
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https://www.videoblocks.com/video/lit…
https://www.istockphoto.com/vector/ba…
https://www.videoblocks.com/video/red…
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https://www.istockphoto.com/photo/neu…