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How does a caterpillar weave a cocoon? Detailed answer

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How does a caterpillar weave a cocoon?

A young butterfly or moth is called a caterpillar. The caterpillar is an insect in development. When a caterpillar hatches from a larva laid by a mother butterfly or mother moth, it is very small. But it is growing rapidly and changes begin to occur with it. The changes that occur to it are called metamorphoses.

The first stage for many caterpillar species is the creation of a cocoon. She weaves it from threads of a sticky liquid produced by her lower lip. This liquid solidifies in air and becomes a thread. We call it natural silk. Some caterpillars form entire bags of silk that completely hide them. Others are wrapped in leaves, fastening only the edges of the sheet with silk.

Many of the hairy caterpillar species spin cocoons from their own hair. Some caterpillars, including certain species that will develop into butterflies, do not build cocoons. But all butterflies go through a dormant stage. It doesn't mean rest at all. This stage can last for two weeks, or maybe all winter. During this period, the caterpillar turns into an adult butterfly or moth. In its new, adult form, the caterpillar becomes wet and weakens the cocoon. As soon as the blood enters the wings through the veins, the adult insect straightens them and dries them. After a few hours, when the wings become strong and dry, the butterfly or moth flies out and lives its adult life.

Author: Likum A.

 Random interesting fact from the Great Encyclopedia:

What primarily determines a person's optimism or pessimism?

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