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Perfect Penguin Huddle

Credit: March of the Penguins (National Geographic film)
Greed is good for penguins that huddle together to avoid Antarctica's icy weather.

According to a new study, penguin groups can maximize everyone's heat when individual birds act selfishly, huddling in ways that keep them toastiest.

[Full Story: Math Reveals Perfectly Cozy Penguin Huddles]   Less «
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