nes. Another physical attribute of killer whales, besides having a tall dorsal fin, is that killer whales have large, paddle-shaped flippers. These flippers are 2-3 times larger in males than they are in females.Killer whales are very large physical specimens. Being known as a fearsome hunter with killer instinct, it would be interesting to know what a killer whale’s diet consists of. The orca resembles the great white shark in its predatory skill and range of food. They eat seabirds, turtles, fishes, including sharks, whales, dolphins, porpoises, seals, and sea lions. These hunters feed in groups of two to twenty animals. They can even kill baleen whales much larger then themselves. They have 10 to 13 teeth on each side of each jaw, which helps in their feeding. Though killer whales sometimes attack dolphins, seals, and other whales larger than themselves, but they have not been known to attack people, although there have been documented cases of killer whale attacks.Throughout the ages, whales have lost some of the characteristics of mammals. Mammals have hair covering their bodies. Whales have only a few stiff hairs on their heads. Mammals have four legs. A whale has no hind legs. The only traces that they remain are two tiny hipbones. The front legs have developed into flippers, which are used for steering or keeping its balance. Although killer whales share the same characteristics as mammals, they also have special features that allow them to live in the water.Whales have many special characteristics suited for living in the water. Living in water enables them to reach enormous sizes. “The buoyancy (lift) of water helps support a whale’s body, which makes it possible for them to grow larger.” (Ellis & Knoph, Pg.18) Orcas have a highly streamlined shape. This enables them to swim with a minimum of resistance. The powerful tail fins called flukes are horizontal. Whales swim by moving the f...
