Even though they are so strikingly different, these stick insects from the Old World are genetically more similar to each other than their relatives that are geographically distance in the New World.

An international research team including the University of Göttingen has described seven previously unknown species of leaf insects, also known as walking leaves. The insects belong to the stick and ...

Stick insect relatives: different in appearance but of the same origin. Surprisingly, New World (above) and Old World stick insects (below) form their own evolutionary lines within this insect group, ...