Sperm whale watchers often use hydrophones to listen to the clicks of the whales and locate them before they surface. These teeth measure between 4 to 8 inches and fit into sockets in the upper jaw, allowing the animal to close its mouth. Annual Review of Earth and Planetary Sciences. The Great Sperm Whale: He also had nineteen harpoons in his body.
Bones show the same pitting that signals decompression sickness in humans.
Bell Witch Lincoln's ghost White Lady. The fleet's scope and size increased over time, and larger ships entered the fishery. The sharp beak of a consumed squid lodged in the whale's intestine may lead to the production of ambergrisanalogous to the production of pearls. On the Trail of the Whale. Individuals rarely, if ever, join or leave a social unit. The knobbly surface reflects sound waves that come through the spermaceti organ from the phonic lips.