SAN JUAN ISLANDS, Wash. - The substance inside the vial is poop, but in the world of whale research, it's pure gold. It's flushed from the digestive system of an endangered resident orca and its chock full of information.

"We get hormones, we measure stress hormones, we measure nutritional hormones, we also measure reproductive hormones and we measure toxins," said Samuel K. Wasser, Ph.D, Conservation Biologist, University of Washington.

To read the full story, click here.