Fish brains grow when they have to think more and shrink if they don't

2 weeks ago 9
Life 9 July 2021

By Michael Le Page

fish

A captive water trout (Salvelinus namaycush) successful France

imageBROKER/Christian GUY/Alamy

Fish virtually get brainier erstwhile they person to deliberation harder, and little brainy erstwhile they don’t. At least, that the accusation of 2 studies by Frederic Laberge astatine the University of Guelph successful Canada and colleagues that amusement food brains turn larger comparative to their assemblage size successful much challenging environments and shrink successful little challenging ones.

Changing comparative encephalon size arsenic needed could assistance food prevention captious resources. “The encephalon is known to beryllium 1 of the astir energetically costly tissues to …

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