Animals are living things that go about eating plants or other animals for food. Their bodies have senses (hearing, seeing, smell) that allow them to react to changes in the things around them. Sense can help them find food, find a warm place to sleep, or just get away from danger. There are thought to be just under nine million different animal species out in the world. There are animals that live in the woods, underwater, in a tree, in a cave, and even in your own home. That is right you are an animal, we all are. Animals do all kinds of crazy things that we do not even realize. Snails can sometimes sleep for up to three years. They do this to conserve moisture during very dry periods. Elephants are the only known land animal that cannot jump. This is because elephant leg bones are positioned downwards and have zero spring to push off the ground.
Your students will read short passages about interesting ways that different animals have evolved in order to survive, whether that is through blending in to their environments, storing food over long periods, the ability to regrow lost limbs or extra teeth, the differences between warm-blooded and cold-blooded species, and more. Two different answer sheets-one multiple choice and one short answer-are provided for each passage. Answer keys are provided for each sheet. Fun Fact: some scientists believe that certain animals' ability to regenerate holds the key to reversing the aging process in humans.