Study: Great Whale Droppings Prove Key to Ocean Health

Valued for their meat and oil, whales were once considered of little consequence to the ocean. But a new study suggests great whales -- Baleen, Sperm, Humpback, Blue and Gray -- have a powerful and positive impact on how the ocean works. “They can increase nutrients in areas where they are feeding," said University of Vermont conservation biologist Joe Roman, lead author of the study. "So whales dive deep to feed. They come to the surface and, as it turns out, they...

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