Insects that look like branches are called stick insects. Stick insects belong to the superorder Orthoptera under the subclass Pterozoa. They are named after their slender bodies and may be winged or wingless. The body is long and large, and it is a medium or large insect. The body color of most stick insects is dark brown, and a few are green or dark green. Stick insects are slow-moving, lying quietly on branches during the day and coming out at night to get leaves to satisfy their hunger. Since they look very much like twigs, they are generally not noticed by enemies.

Stick insects:

Stick insects are mostly distributed in tropical and subtropical areas. It inhabits high mountains, dense forests and complex habitats. It has typical mimicry and protective coloration. It is similar to its habitat and is not easily discovered by enemies. Among them, the stick insects are very similar to the twigs of trees, and the leaves are very similar to the leaves of trees. They usually live in grass or trees and feed on leaves. Adult insects can also survive the winter, but most are unable or poor at flying. Stick insects live on bamboo and other plants when they are stationary. They have mimicry and protective colors and are often difficult to detect. Males are more lively, active day and night, and generally feed more at night. Nymphs and adults have their ventral ends flexed upward. When disturbed, they often retreat and then fall down, and emit odorous liquid from the front corner of the pronotum. Hermaphrodite reproduction, eggs are laid loosely, attached to branches or directly laid on the ground, and hatch on the surface the next spring. Some species can undergo parthenogenesis (for example: ghost stick insects).