1. Whales
... life chiefly marine mammals of the order cetacean, including whales, dolphins and porpoises, characterized by a nearly hairless body, broad flippers and a flat notched tail. There are 75 species of Cetaceans, but the two groups are toothed whales and baleen whales. Toothed whales are predators that use their peg-like teeth ... . They have one blow hole and use echolocation to hunt. Echolocation is a high pitched sound sent out by the whale. It bounces off the object and then returns to the whale. This tells the whales the shape, direction, distance and texture of the object. Baleen whale...
- Word Count: 693
- Approx Pages: 3
- Grade Level: High School