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Brain size in primates is predicted by fruit diet, NYU anthropologists
Posted by: Panchito ()
Date: April 12, 2017 08:55PM

[www.nyu.edu]

Quote

In the Nature Ecology and Evolution study, the researchers, who also included Scott Williams, an assistant professor of anthropology at NYU, examined more than 140 primate species—or more than three times as many as previous studies—and incorporated more recent evolutionary trees, or phylogenies. They took into account food consumption across the studied species—folivores (leaves), frugivores (fruit), frugivores/folivores, and omnivores (addition of animal protein)—as well as several measures of sociality, such as group size, social system, and mating system.

Their results showed that brain size is predicted by diet rather than by the various measures of sociality—after controlling for body size and phylogeny. Notably, frugivores and frugivore/folivores exhibit significantly larger brains than folivores and, to a lesser extent, omnivores show significantly larger brains than folivores.

Fruit is patchier in space and time in the environment, and the consumption of it often involves extraction from difficult-to-reach-places or protective skins,” observes DeCasien. “Together, these factors may lead to the need for relatively greater cognitive complexity and flexibility in frugivorous species.


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Re: Brain size in primates is predicted by fruit diet, NYU anthropologists
Posted by: fresh ()
Date: April 25, 2017 08:58PM

very interesting thanks panchito

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Re: Brain size in primates is predicted by fruit diet, NYU anthropologists
Posted by: RawPracticalist ()
Date: April 26, 2017 01:01AM

>“Fruit is patchier in space and time in the environment, and the consumption of it often involves extraction from difficult-to-reach-places or protective skins,” observes DeCasien

Still true even now. Fruits are one of the hardest items to find at the grocery store.

You have to look further down and while walking to the fruit section you have to fight the urge to buy the cakes, doughnuts, and fried chickens on display along the way.

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