Mammals' brains got bigger to handle sense of smell
Geplaatst op 20 mei 2011 - 13:45
Mammals have the largest brains relative to body size out of all the organisms on Earth. In addition, only mammals have a neocortex, the outer layer of the cerebral hemispheres that participates in higher functions like sensory perception, refined motor coordination, and language. Researchers are interested in figuring out how mammals evolved such large and complex brains. Studying brain evolution has been limited by the rarity of intact skulls and a shortage of techniques that can analyze the interior of those fossils without destroying them
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