Question

If pacific field male crickets in hawaii attract females by rubbing their wings together to sing, why is it that in some places up to 90% of the males no longer sing? how could this have evolved?.

Answer 1

to shield from predators

Step-by-step explanation:

A certain mutation causes crickets to stop singing; and not for no reason, it happened as a result of parasitic flys that used the song to find hosts-- and although it worked and fewer crickets died from the parasite it also meant that certain crickets couldn't attract females. This evolved as a way to prevent the parasites from finding crickets and killing them but unfortunately also prevents females from finding them. I hope this helps!