Stick bugs are a fascinating insect variety. They have uniquely camouflaged bodies that make them fun models in science education. But their eating habits can devastate trees and damage forests.

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these ...

A team of biologists in Montana and Germany has found that, regardless of type, those insects that express a protective stick- or leaf-like appearance all evolved the same basic body parts.