1/9/2012

Orca populations in Puget Sound have dropped, prompting the species inclusion on the endangered species list in 2005, and the whales' numbers are not recovering, mystifying researchers. But one dog is helping scientists study these animals -- by sniffing out the whales' feces. Researchers study the feces to learn about the whales' diet and to what they have been exposed, such as pesticides and flame retardants.

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