In all comparative analyses, humans always fall on the borderline between obligate monogamy and polygamy. Here, we use behavioural indices (sociosexuality) and anatomical indices (prenatal testosterone exposure indexed by 2D : 4D digit ratio) from three human populations to show that this may be because there are two distinct phenotypes in both sexes. While males are more promiscuous and displa...

In eusocial species, some individuals sacrifice their own reproduction for the benefit of others. The evolutionary transition towards eusociality may have been facilitated by ancestral species having a monogamous mating system (the monogamy hypothesis) or a haplodiploid genetic system (the haplodiploidy hypothesis), or it may have been entirely driven by other (ecological) factors. Here we show...

According to the writings of members of the polyamorous community, polyamory is a type of nonmonogamous relationship orientation in which it is considered acceptable to love more than one person and emphasis is placed on openness and honesty within one’s relationships. The proliferation of websites, e-mail groups and books on the topic since the mid 1990s mean that polyamory can be seen as a bu...

Models of sexual selection by mate choice have emphasized the evolution of sexually dimorphic costly signals, such as elaborate plumage or courtship display, in the sex exhibiting higher reproductive skew, usually males. Less well explored is the action of mutual mate choice in driving signal evolution in socially monogamous or near-monogamous populations. We present a simulation model of condi...

The monogamy of quantum entanglement captures the property limitation in distribution entanglement. Various relations exist for different measures that are important information processing. Our goal this work is to propose general inequalities several on entangled qubit systems. present results provide a unified model various including concurrence, negativity, formation, Tsallis-q entropy, Rény...

<span class="fontstyle0">In principle, the Marriage Law adheres to principle of monogamy, but it does not rule out those who wish polygamy as long their religion and belief allows can fulfill requirements stipulated by Law. This is reflected in Article 3 paragraph 1 which reads: In a marriage man only have one wife, woman husband; The court may give permission for husband more than wife i...