Dog helps track mystery of orcas' decline

Researchers trying to learn whether orcas are starving have turned - with the help of a dog - to a new source of information: orca scat.

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<p><a href="http://www.physorg.com/news146334785.html">Dog helps track mystery of orcas' decline</a></p> <p>Researchers trying to learn whether orcas are starving have turned - with the help of a dog - to a new source of information: orca scat.</p>