Fig wasps lay fertilized eggs within figs, and no females disperse. In some species, males are wingless upon hatching and cannot leave the fig to seek mates elsewhere. Instead, males compete with their brothers in order to fertilize their sisters in the figs; after fertilization, the males die.
Fig wasp offspring develop inside figs, and no females roam free. In some species, young males are wingless at birth and cannot leave the fig to find mates elsewhere. Instead, males engage in a battle with their brothers to fertilize their sisters within the figs; after fertilization, the males die.