▁so ▁in ▁males ▁than ▁females . ▁Even ing ▁activity ▁consists ▁of ▁those ▁in ▁which ▁the ▁f lies ▁particip ate ▁other ▁than ▁m ating ▁and ▁finding ▁partners , ▁such ▁as ▁finding ▁food . ▁The ▁re product ive ▁success ▁of ▁males ▁and ▁females ▁var ies , ▁because ▁a ▁female ▁only ▁needs ▁to ▁mate ▁once ▁to ▁reach ▁maximum ▁fert ility . ▁M ating ▁with ▁multiple ▁partners ▁provides ▁no ▁advantage ▁over ▁m ating ▁with ▁one ▁partner , ▁so ▁females ▁exhib it ▁no ▁difference ▁in ▁evening ▁activity ▁between ▁pol yg am ous ▁and ▁mon og am ous ▁individuals . ▁For ▁males , ▁however , ▁m ating ▁with ▁multiple ▁partners ▁increases ▁their ▁re product ive ▁success ▁by ▁increasing ▁the ▁gen etic ▁divers ity ▁of ▁their ▁off spring . ▁This ▁benefit ▁of ▁gen etic ▁divers ity ▁is ▁an ▁evolution ary ▁advantage ▁because ▁it ▁increases ▁the ▁chance ▁that ▁some ▁of ▁the ▁off spring ▁will ▁have ▁tra its ▁that ▁increase ▁their ▁fit ness ▁in ▁their ▁environment . ▁ ▁The ▁difference ▁in ▁evening ▁activity ▁between ▁pol yg am ous ▁and ▁mon og am ous ▁male ▁f lies ▁can ▁be ▁explained ▁with ▁court ship . ▁For ▁pol yg am ous ▁f lies , ▁their ▁re product ive ▁success ▁increases ▁by ▁having ▁off spring ▁with ▁multiple ▁partners , ▁and ▁therefore ▁they ▁spend ▁more ▁time ▁and ▁energy ▁on ▁cour ting ▁multiple ▁females . ▁On ▁the ▁other ▁hand , ▁mon og am ous ▁f lies ▁only ▁court ▁one ▁female , ▁and ▁exp end ▁less ▁energy ▁doing ▁so . ▁While ▁it ▁requires ▁more ▁energy ▁for ▁male ▁f lies