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Biologists Question Animal Brain Size Theory
Date:5/30/2009

despite modern-types of dogs having been around for 10 million years.

The hypothesis further broke down when they looked at relatively large-brained carnivores, such as bears, small cats and weasels. The Social Brain Hypothesis would hold that these animals would have social orders, but in actuality, they don't, the authors said.

More information

The Alzheimer's Association has more about how the brain works.



-- Kevin McKeever



SOURCE: American Museum of Natural History, news release, May 25, 2009


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