What is a life cycle?
Animal Life Cycles
Most animals including fish, mammals, reptiles and birds have very simple life cycles:
- they are born (either alive from their mother or hatched from eggs)
- they grow up
These animals have three stages -- before birth, young and adult. The young are typically similar to the parent, just smaller. The young slowly "grow" to become adults.
What is metamorphosis?
Metamorphosis is a process some animals go through to become adults. It is a series of physical changes. Metamorphosis is especially common in insects. Genes and chemicals called hormones control the process.