▁evolution ary ▁bi ology , ▁especially ▁in ▁sexual ▁selection , ▁f ec und ity ▁is ▁contrast ed ▁to ▁re product ivity . ▁ ▁In ▁obst et rics ▁and ▁gy ne col ogy , ▁f ec und ability ▁is ▁the ▁probability ▁of ▁being ▁pre gn ant ▁in ▁a ▁single ▁men stru al ▁cycle , ▁and ▁f ec und ity ▁is ▁the ▁probability ▁of ▁ach ieving ▁a ▁live ▁birth ▁within ▁a ▁single ▁cycle . ▁ ▁See ▁also ▁ ▁F ec und ity ▁selection ▁ ▁B irth ▁rate ▁ ▁Natal ism ▁ ▁Population ▁e col ogy ▁ ▁Bi ological ▁life ▁cycle ▁ ▁References ▁ ▁Category : F ert ility ▁Category : Pop ulation ▁Category : Ph il osoph y ▁of ▁science <0x0A> </s> ▁Viv iane ▁Ara ú jo ▁G om es ▁( born ▁November ▁ 2 1 , ▁ 1 9 8 6 ) ▁is ▁a ▁Brazil ian ▁mixed ▁mart ial ▁artist . ▁She ▁was ▁the ▁formal ▁P anc r ase ▁st raw weight ▁champion ▁and ▁currently ▁compet es ▁in ▁the ▁fly weight ▁division ▁of ▁the ▁Ult imate ▁Fight ing ▁Championship ▁( U FC ). ▁As ▁of ▁February ▁ 1 0 , ▁ 2 0 2 0 , ▁she ▁is ▁ranked ▁# 7 ▁in ▁the ▁U FC ▁women ' s ▁fly weight ▁rank ings . ▁ ▁Background ▁ ▁Ara ú jo ▁started ▁playing ▁s occer ▁and ▁spent ▁much ▁of ▁her ▁time ▁away ▁from ▁home ▁to ▁forget ▁about ▁problems ▁at ▁home ▁after ▁witness ing ▁her ▁alco hol ic ▁father ▁be ating ▁her ▁mother ▁in ▁a ▁daily ▁basis