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By Will Dunham WASHINGTON (Reuters) - Menopause is a rare trait among Earth's species, known to exist in only a few. Humans are one. Killer whales and four other toothed whales are the others. New research examines menopause in these whales, with

Most of us are familiar with air and water pollution, but not underwater noise pollution. According to WWF, though, this is a loud and clear threat, and it is critical to act now to tackle it. The underwater noise pollution from

Young children get a close-up view of an Orca killer whale during a visit to the animal theme park SeaWorld in San Diego, California March 19, 2014 REUTERS/Mike Blake By Will Dunham WASHINGTON (Reuters) - Dolphins, porpoises, killer whales, sperm