Giant Spiny Stick Insects are masters of camouflage. They can be found all over the world and most live in trees, resembling small twigs and branches. The giant spiny stick insect is found in Australasia where it lives on the rainforest floor. They look just like the rotten wood and sticks found in undergrowth which helps them to hide from predators during the day. At night they come out from under logs and stones to forage for food. They are herbivores and mainly eat the leaves of plants.
Females are bigger than males and can grow up to 6 inches long. Males have a large spine on the inside of their back legs which gives them their name. They use this spine to defend themselves and to fight over females. If there are no males around female Spiny stick insects are still able to reproduce by self-fertilising their eggs.