Toothed whales eat fish and plants. They have one nostril, or blowhole. Whales swim by moving their tails up and down and using their flippers, which also help them to turn. Some whales, such as the sei, can swim more than 30 miles per hour. Flippers of the humpback whale can be as long as 15 feet.
All whales are very noisy.
They moan, groan, squeak and sigh to talk to each other. These underwater sounds can travel great distances. Whale are the loudest animals in the world. Whales migrate further than any other animal. Migrating means to move from one area to another.