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Flies Help Understand How Human Brains Work

The last common ancestor of flies and humans lived more than 500 million years ago.  But scientists say as both organisms evolved they developed similar strategies to sense movement around them.  So - scientists at Stanford University are using flies - in an effort to better understand how the human brain works. A human brain contains more than 100 billion neurons while the fly’s brain has just 100,000. So it is much easier for scientists to study how a fly reacts to a perceived...

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