A captive lake trout (Salvelinus namaycush) in France
imageBROKER/Christian GUY/Alamy
Fish literally get brainier when they have to think harder, and less brainy when they don’t. At least, that the implication of two studies by Frederic Laberge at the University of Guelph in Canada and colleagues that show fish brains grow larger relative to their body size in more challenging environments and shrink in less challenging ones.
Changing relative brain size as needed could help fish save vital resources. “The brain is known to be one of the most energetically expensive tissues to …
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July 09, 2021 at 07:00PM
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Fish brains grow when they have to think more and shrink if they don’t - New Scientist
"fish" - Google News
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