Listening to Sperm Whale Sonar

Mother_and_baby_sperm_whale-wikipediaStony Brook University (USA), 6 november 2013 – A few years ago in the Gulf of California, we found ourselves surrounded by a pod of female sperm whales sleeping peacefully like massive logs in a calm sea. One, followed closely by a seemingly protective companion, had a baby so new that it still trailed an umbilical cord as it swam with tail flukes not fully unfurled. Naturalist Carlos Navarro slipped into the water with his camera. He recorded these sounds being produced by the sperm whale he was filming at close range.

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