Stick insects (Eurycantha calcarata) are mainly nocturnal. During the day, they may hide, motionless, under plants and 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.