9781422283455

Because they are warm-blooded, mammals use a lot of energy. That means they need to eat—a lot. Many, including cows, deer, and rabbits, are plant eaters (herbivores). Others are fierce, meat-eating hunters (carnivores), and they kill animals for food. Giraffes, the tallest mammals, are plant eaters. They use their long necks to reach up and pluck tender leaves from tall trees. Leaves, grass, and other plant foods are not very nourishing, so giraffes and other plant-eating mammals have to spend a lot of time feeding just to stay alive. Most animals eat either plants or animals, but pigs, bears, chimpanzees, and humans can eat both. They are called omnivores. 7 A few types of mammals are bold and powerful enough to kill a person. The tiger is one such animal.

14.

Made with FlippingBook Online newsletter