Boasting the largest brain of any known animal and diving to astounding depths.
Male Sperm Whales can reach a colossal 57 tons, with their massive, square heads housing the spermaceti organ and the heaviest brain on Earth (up to 9 kg!). These toothed whales are the deepest diving mammals, capable of plunging over 2,000 meters (6,500 feet) to hunt giant squid in the dark abyss. Their clicks used for echolocation are among the loudest sounds produced by any animal.
