The poop on finding penguins: Follow the guano

(AP) -- Scientists looking for lost penguins stumbled upon an effective method: Follow their poop from space.

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<p><a href="http://www.physorg.com/news163141205.html">The poop on finding penguins: Follow the guano</a></p> <p>(AP) -- Scientists looking for lost penguins stumbled upon an effective method: Follow their poop from space.</p>