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his is going on?
00:38:26 Well it's when mating is happening, when choice is being
00:38:30 made.
00:38:31 And that's where the operational ###### ratio comes into
00:38:37 play.
00:38:37 It basically is determining the opportunity for selection,
00:38:41 and it varies with mating system and parental care.
00:38:44 So ######ual selection marlboro cigarettes wholesale, which produces striking
00:38:47 differences in the behavior and morphology of males and females,
00:38:51 is correlated in ecology and evolution with mating systems
00:38:56 and patterns of parental care.
00:38:58 These things all go along with each other to form syndromes of
00:39:04 traits.
00:39:05 In monogamy, equal numbers of males and
00:39:07 females have offspring cheap newport cigarettes, and each ###### has one partner,
00:39:10 and there's not very much difference in the operational
00:39:14 ###### ratio and not much opportunity for ######ual
00:39:17 selection.
00:39:18 In polyandry there are more males than females,
00:39:22 that have offspring newports cigarettes wholesale, and each female has two or more
00:39:26 male partners.
00:39:28 So there is great variance in reproductive success among
00:39:32 females; there's less variance in
00:39:34 reproductive success among males.
00:39:36 In the reverse pattern, in polygyny,
00:39:38 more females than males have offspring marlboro cigarette website, and each male has two
00:39:41 or more female partners; that leads to harems and leks.
00:39:45 And then there are things like polygynandry where each ###### may
00:39:50 have several partners.
00:39:52 There'