Of course, this is absolutely necessary. How else would an ugly caterpillar turn into a beautiful Butterfly. People who study insects are called entomologists. Entomologists try to understand how insects live in different environments and how they are important to human beings. Entomologists study insects on farms, near lakes, in houses, in forests, in deserts, and all over the world so they can learn how insects survive.
Scientists also rear insects in laboratories to study insects closely in different situations.
Click for large version. Entomologists can learn whether a termite eats more dead wood in the summer or in the winter. They can discover whether the harlequin bug likes to eat one kind of cabbage more than another kind. When entomologists find answers to questions about insects, they can think of ways to help people, insects, other animals, and plants live together. Try This at Home Experience butterfly metamorphosis first hand.