The sperm whale, Physeter macrocephalus, is a marine mammal species, order cetacea, a toothed whale (odontocete) having the largest brain of any animal. The name comes from the milky-white waxy substance, spermaceti, found in its head and originally mistaken for sperm. The sperm whale is the only member of genus Physeter. The synonym Physeter catodon refers to the same species. It is one of three extant species in the sperm whale superfamily, along with the Pygmy Sperm Whale and Dwarf Sperm Whale.
A bull can grow up to 20.5 meters (67 ft) long. It is the largest living toothed animal. The head can take up to one-third of the animal's length. It has a cosmopolitan distribution across the oceans. The species feeds on squid and fish, diving as deep as 3 kilometers (9,800 ft), which makes it the deepest diving mammal. Its diet includes Giant squid and Colossal Squid. It is the largest living predator and possibly the largest ever, not in terms of its taking animal matter (which is true of all cetaceans, including the larger baleen whales) but in that it actively preys on self-functioning animals. The sperm whale's clicking vocalization is the loudest sound produced by any animal, but its functions are uncertain. These whales live in groups called pods. Pods of females and their young live separately from older males. The females cooperate to protect and nurse their young. Females give birth every three to six years, and care for the calves for more than a decade.
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Also Check out: Marine Life Tattoo Index, Killer Whales, Dolphin Tattoos,
