Stick insects (Eurycantha calcarata) are mainly nocturnal. During the day, they may hide, motionless, under plants. Because of their superior camouflage, they can sit in the open and remain unseen.
Tropics and subtropics
Spiny devils are well named: the males have huge spines on their back legs. These built-in weapons help males defend themselves if attacked by other males or potential predators.