Mini Human 'Brains' Grown in a Dish

"The first complete living model of the developing human brain has been created in a lab dish.

Researchers grew human stem cells in an environment that encouraged them to form pea-size gobs of brain tissue, which developed into distinct brain tissues, including a cerebral cortex and retina."

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Full article:
http://www.livescience.com/39247-mini-human-brains-grown-in-dish.html