Is the Hobbit's Brain Unfeasibly Small?

Pygmy is a term used for various ethnic groups worldwide whose average height is unusually low; anthropologists define pygmy as any group whose adult males grow to less than 150 cm (4 feet 11 inches) in average height.[1] A member of a slightly taller group is termed pygmoid.[2] The best known pygmies are the Aka, Efé and Mbuti of central Africa. There are also pygmies in Thailand, Malaysia,[3] Indonesia, the Philippines, Papua New Guinea, and Brazil.[4] The term also includes the Negritos of Southeast Asia. The remains of at least 25 miniature humans, who lived between 1,000 and 3,000 years ago, were found on the islands of Palau in Micronesia.

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One of the best known are the Pygmies, there was much written and on TV years back.