An Orca’s Best Friend

Meet Tucker, a dog trained to sniff out pods of Orca in the ocean to help scientists study their health. His incredible nose makes tracking the animals and evaluating stresses on their habitat easier for researchers.

http://usnews.msnbc.msn.com/_news/2012/06/06/12071751-dog-gets-starring-role-in-study-on-what-stresses-killer-whales?lite

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