Why fire flies emits light?

Why fire flies emits light?

PROF WAQAR HUSSAIN

                   Fireflies appear to light up for a variety of reasons.

            First, the larvae of fire fly produce short glows. The adult Fireflies produce defensive steroids in their bodies that make them unpalatable to predators. So, the Larvae use their glows as warning displays to communicate their distastefulness.

             Second, many fireflies have flash patterns unique to their species and use them to identify other members of their species.

            Third, flash patter is used to discriminate between members of the opposite sex. Female fireflies prefer and love males having higher flash rates and high intensity of flash light.