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Monogamy in mammals is rather rare, only occurring in 3–9% of these species. [3] [4] [5] A larger percentage of avian species are known to have monogamous relationships (about 90%), [6] but most avian species practice social but not genetic monogamy in contrast to what was previously assumed by researchers. [7]
Social monogamy in mammals is defined as sexually mature adult organisms living in pairs. [1] While there are many definitions of social monogamy, this social organization can be found in invertebrates, reptiles and amphibians, fish, birds, mammals, and humans. [2]
Monogamy (/ m ə ˈ n ɒ ɡ ə m i / mə-NOG-ə-mee) is a relationship of two individuals in which they form a mutual and exclusive intimate partnership.Having only one partner at any one time, whether that be for life or whether that be serial monogamy, contrasts with various forms of non-monogamy (e.g., polygamy or polyamory). [1]
Social monogamy in some species may have evolved to combat this behavior. [123] Polygynandry may also lessen the risk of infanticide since paternity becomes uncertain. [124] Primates have a longer juvenile period between weaning and sexual maturity than other mammals of similar size. [57]
Monogamy: One male and one female have an exclusive mating relationship. The term "pair bonding" often implies this. This is associated with one-male, one-female group compositions. There are two types of monogamy: type 1, which is facultative, and type 2, which is obligate. Facultative monogamy occurs when there are very low densities in a ...
Extra-pair copulation (EPC) is a mating behaviour in monogamous species. Monogamy is the practice of having only one sexual partner at any one time, forming a long-term bond and combining efforts to raise offspring together; mating outside this pairing is extra-pair copulation. [ 1 ]
Social monogamy, sexual monogamy, and genetic monogamy can occur in different combinations. Social monogamy is relatively rare in the animal kingdom. The actual incidence of social monogamy varies greatly across different branches of the evolutionary tree. Over 90% of avian species are socially monogamous. [10] [16] This stands in contrast to ...
Most mammals possess a vomeronasal organ that is involved in pheromone detection, including sex pheromones. [19] Despite the fact that humans do not possess this organ, adult humans appear to be sensitive to certain mammalian pheromones that putative pheromone receptor proteins in the olfactory epithelium are capable of detecting.