In many ways, the deep ocean feels like an entirely different planet from the one we live on—home to some of Earth’s most extraordinary creatures, two of the most evocative being the largest toothed ...

A pygmy sperm whale was attacked by a pod of orcas off the coast of Madeira. Orcas preying on marine mammals are rarely seen in the region. Camila Dávila Pardo/ Blue Safari Madeira As the whale ...

The life of a sperm whale remains largely a mystery. The animals spend most of their time at great depths, diving more than 6,000 feet in pursuit of prey and staying down for more than an hour. They ...

Project CETI (Cetacean Translation Initiative) has published two scientific studies presenting the most comprehensive documentation of a sperm whale birth ever recorded and the first quantitative ...

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Whalers pursued sperm whales for the rich oil in their oversized heads. Now biologists are on the tail of these deep-diving, long-lived, sociable and mysterious sea creatures. Gerard Soury / Oxford ...