Now, a new study shows that, at least in promiscuous, feral fowl, fake sex may help roosters dissuade hens from mating with other males.
Moreover, adding male immigrants to small and fractured populations can lead to immediate fitness benefits, at least in promiscuous species.
Among the many divisive arguments in the work is that gay men should stop having sex — or at least stop being sexually promiscuous — until the disease is isolated, and that gay identity is destructively wrapped up in sexual activity and narcissism rather than in self-acceptance and platonic fellowship with other gay people.
Similarly, populations of the outcrossing C. remanei consist of males and females at roughly equal frequencies, and mating is promiscuous, at least in the laboratory.
Several published spacer mutants have been described in the literature as self-recombining and are non-promiscuous (at least with the wild-type loxP spacer sequence).
The experimental data revealed that 11 out of 44 pan-WNV sequences, localized in prM, E, NS1, NS3, NS4a, NS4b and NS5, were promiscuous for at least two HLA-DR alleles; the promiscuity of 9 of these 11 pan-WNV sequences were correctly predicted (Table S2).
The ubiquity of these changes is striking – even though many of the neutrally evolved P450s had only a handful of mutations, most of them had experienced at least some change in their promiscuous activities.
Because EIZS is moderately promiscuous, generating at least five minor sesquiterpene products in addition to 79% epi-isozizaene from the universal sesquiterpene substrate farnesyl diphosphate (FPP), it is an ideal platform for the exploration of fidelity and promiscuity in a terpenoid cyclization reaction.
Figures in the UNAIDS report quoted above suggest that, in some countries at least, young people are becoming less promiscuous.
