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In an evolutionary blink, populations of a New Zealand stick insect can give up sex — or embrace it again. Some populations of the stick insect Clitarchus hookeri reproduce sexually and contain equal ...

Some female stick insects just don’t need males around, ever. They clone themselves, alter their pheromones to stay inconspicuous to unwanted suitors, and when males try to copulate with them, they ...

Male (top) and female (bottom) Lord Howe Island stick insects from the captive-bred Ball's Pyramid population, also known as "tree lobsters," on a leaf at the Melbourne Zoo. Lord Howe Island Stick ...

Do Rare Males Retain Reproductive Function? While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally ...

A newly named species of giant stick insect found in Australia’s Wet Tropics rainforests is thought to be the heaviest insect ever found on the continent. Acrophylla alta weighs 44 grams, around the ...

A surprise clutch of eggs has solved a century-old leaf insect mystery. A female Phyllium asekiense, a leaf insect from Papua New Guinea. Like many leaf insects, P. asekiense was known only from ...