Crickets on Mute.

The article reports on an extreme example of natural selection, in which chirping behavior has nearly died out among a population of Teleogryllus oceanicus crickets on Hawaiian island Kauai, due to an invasion by Ormia ochracea flies. Female flies follow the cricket chirps to deposit larvae on a male, which then dig in and eat the cricket from the inside. Male crickets have developed a mutation to remain silent so that the deadly flies will not find them.