Why has the author chosen to include the word metamorphosis in the text? Use two details to support your answer. i will put the text also it is a paragraph

Named for the biblical giant Goliath, the Goliath beetle is the most colossal, brawniest, and heftiest kind of beetle in the world. Goliath beetles grow to a length of up to eight inches and may weigh as much as three and a half ounces. Most Goliath beetles are as large as a mouse. They have distinct vertical black bands, like the bars of a prison door, on the elytron that cover their wings. Some species may also have bright yellow, red, gray, or brown markings.

2 The Goliath beetle lives in flowers in the tropical rain forests of Africa. Goliath beetles have fearsome jaws that they use to slash, impale, and chomp food. Adult beetles primarily feed on sugary tree sap and fruit. Goliath beetles also have six powerful legs with sharp claws that can grip. The Goliath beetle uses its claws to gather food and to climb. In addition, the Goliath beetle has a pair of front and a pair of rear wings attached to its thorax. When it flies, it sounds like the whirl of a helicopter propeller.

3 Like other kinds of beetles, the Goliath beetle undergoes a metamorphosis—a four-stage process of change. This process takes place as the beetle develops. During the first stage, a female Goliath beetle lays its eggs in rotting wood or decaying plants. Once an egg hatches, the wormlike larva feeds on the wood or plant material until it is fully grown. The larva wraps itself in a cocoon like a suit of armor to protect itself. Then the pupa lives in the cocoon during the third stage. After several months, the cocoon breaks apart. An adult Goliath beetle steps forth to find a mate, and the four steps in the life cycle of a Goliath beetle are repeated.

4 Goliath beetles are truly the giants of the insect world, and their formidable presence leaves a lasting impression on those who view them.