It’s a boy! Science World staffers were in disbelief after a male stick insect was born into an all-female colony in what is being described as an “extremely rare” event. Science World’s stick insect ...

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally appear. Whether these males retain ...

Certain wingless, sticklike insects that hide in bushes and trees across central California have no need for males: these insects in the Timema genus are nearly all female and reproduce without sex by ...