During reproduction, an organism creates new organisms like itself. At death, the organism's life ends. Like people, some organisms get larger as they grow older. Unlike people, some organisms go through a life cycle change called metamorphosis. Metamorphosis means a change in the body form of an organism.
Big changes take place in insects like the butterfly.
Other animals, such as frogs and toads, also go through metamorphosis. Young frogs live only in water. Adult frogs live both in and out of water. Their bodies must change to live in both places. Other animals like birds, turtles, cats, and bears do not go through metamorphosis.