According to Defenders of Wildlife, male killer whales grow up to 23 feet in length and weigh from 7 to 10 tons. Female whales grow up to 23 feet when fully grown and weigh anywhere from 4 to 6 tons.Continue Reading
Killer whales are typically slightly smaller than a bus when fully grown. A baby killer whale, known as a calf, weighs up to 400 pounds at birth. Newborn calves measure up to 7 feet.
Although male killer whales are typically larger than females, the latter lead the mammals' family groups, which are called pods. Also known as orcas, killer whales are an endangered species.Learn more about Marine Mammals