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There is some variation in brain size among different Dog Breeds, but that is mostly due to variation in body size. W. Tecumseh Fitch's 2010 book "The Evolution of Language" explains that, in general, larger animals have larger brains -- you couldn't very well encase a humpback whale's 10-pound brain in your skull. But if you're comparing brain size relative to body size, as the breed's body size gets smaller, dog brain size doesn't necessarily shrink in exact proportion. Smaller dogs tend to have brains that seem huge in proportion to their bodies when compared to the brain/body ratio of larger dogs.

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Ardella Ernser

Lvl 13
3y ago

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