From being born in eggs that resemble seeds, to spending its nymph stage disguised as an ant, to mimicking a leaf swaying in the breeze in its final, adult form, the Australian walking stick (Extatosoma tiaratum) spends its entire life undercover, although, ironically, never as a stick. Part of KQED’s science documentary series Deep Look, this short video traces the developmental stages in the life of this large species of stick insect endemic to Australia, to show how each of its disguises provides the shape-shifting creature with a unique evolutionary benefit.