The order Phasmida known as stick and leaf insects includes 13 families, 463 genera and more than 3060 described species. They are considered by some to have originated around 290 million years ago between the Carboniferous and Permian. They display exceptional cryptic mimicry at all their life stages — their eggs resemble plant seeds, and nymphs and adults mimic leaves or twigs for camouflage. Australia, and Queensland in particular, is a hotspot of diversity.
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