The Madeleine Brand Show for January 19, 2011

Based on two genes, I can tell who you're friends with on Facebook

Mercer 13982

mr-football/Flickr (cc by-nd)

Friendship bracelet looks oddly like a double helix...

What role do your genes play in your friendships? A study published this week in The Proceedings of the National Academy of Sciences says there is evidence that our biology has a hand in how we choose our friends. James Fowler is a social scientist at UC San Diego and he is the author of the study. He crossmapped human genomes with trees of Facebook friends.

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