Passage: Sperm whales usually dive between 300 to 800 meters (980 to 2,620 ft), and sometimes 1 to 2 kilometers (3,300 to 6,600 ft), in search of food. Such dives can last more than an hour. They feed on several species, notably the giant squid, but also the colossal squid, octopuses, and fish such as demersal rays, but their diet is mainly medium-sized squid. Some prey may be taken accidentally while eating other items. Most of what is known about deep sea squid has been learned from specimens in captured sperm whale stomachs, although more recent studies analyzed feces. One study, carried out around the Galápagos whales, found that squid from the genera Histiocyte (62%), Ancistrus (16%), and Octopus (76%), hunting whales from the genera Histiocyte (16%), and sometimes 1 to 2 kilometers (3,300 to 6,600 ft), in search of food.
Visiwa vya Galápagos