October 30, 2012
Sight Sign

By using a giant genetic dataset, a group of scientists has determined that vision likely evolved around 700 million years ago. The conclusion was reached after comparing all the relevant genetic information responsible for the creation of opsins, a substance vital to vision. And by "all," they apparently mean creatures as diverse as sponges and, well, people.

Posted by scott at October 30, 2012 07:16 AM

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