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Why Are Dog’s Brains Getting Bigger and Bigger? Scientists Are Stumped
Amaze Lab
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5/10/2025
In nature generally the larger the brain the smarter the creature. Well now, new research suggests that the brains of domestic dogs are getting larger, but scientists are sort of baffled as to why.
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Learning
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00:00
in nature generally the larger the brain the smarter the creature well now new
00:08
research suggests that the brains of domestic dogs are getting larger but
00:12
scientists are sort of baffled as to why domestication has long been a mechanism
00:16
for smaller brains and animals and sort of humans as well over the last three
00:19
millennia anthropologists say human brains have shrunk in volume and
00:23
compared to wolves dog relative brain size is smaller as well but now a new
00:27
study published in the journal evolution outlines how the more different the
00:30
dog breed is from a wolf now the larger the brain experts believe that when dogs
00:34
were first domesticated their brains shrunk as they no longer needed as much
00:37
bandwidth as they could rely on their human best friends but now as breeding
00:41
has caused forced evolution over the last several thousand years their
00:44
cognitive abilities are likely getting better meaning their brains are growing
00:48
with evolutionary biologist nicholas calm saying about the findings quote
00:51
different dog breeds live in varying levels of social complexity and perform
00:55
complex tasks which likely require a larger brain capacity though the
00:59
researchers found that the only correlation of brain growth was how
01:02
dissimilar the breeds were to wolves rather than their actual cognitive
01:06
abilities
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