Sperm whales are extraordinarily intelligent animals with deep family traditions and the ability to communicate across oceans with sonic clicks. But when Rowan Jacobsen had a close encounter with one in the Caribbean, he saw a creature far stranger than he'd ever imagined.
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Three miles off the coast of Dominica, on a flat blue Caribbean sea, Pernell Francis lowers a hydrophone into the water and slides a pair of headphones over his ears. Captain Jerry kills the engines on the Southern Cross, his sportfishing boat, and the other two people on board, the marine scientist Gaelin Rosenwaks and her mother, Stacy, get superstitiously quiet.
It’s eight o’clock in the morning on November 21, and we’re listening for the sounds of the world’s brainiest and most charismatic megafauna.