Entomologists study insects and related creatures, including ticks. Many entomologists are interested in the ways that insects grow.
Most insects grow in a different way than do people.
A human gradually grows from baby to adult. For example, a monarch butterfly goes through several changes. It starts as an egg, then changes into a caterpillar, or larva. Then it changes into a chrysalis, or pupa, which is similar to a cocoon. Finally, the adult butterfly emerges from the chrysalis.