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A study on the association of alpha males and females during the non-breeding season in wild Capuchin monkeys examined whether alpha males are the preferred mate for females and, secondly, whether female-alpha status and relationship to the alpha-male can be explained through the individual characteristics and or social network of the female. [4]
Pseudohermaphroditism is an outdated [1] term for when an individual's gonads were mismatched with their internal reproductive system and/or external genitalia. The term was contrasted with "true hermaphroditism" (now known as ovotesticular syndrome), a condition describing an individual with both female and male reproductive gonadal tissues.
Hermaphrodite is a series of photographs of a young intersex person, who had a male build and stature and may have been assigned female or self-identified as female, taken by the French photographer Nadar (real name Gaspard-Félix Tournachon) in 1860.
A high-ranking male mandrill advertises his status with bright facial coloration. [1]In the zoological field of ethology, a dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social groups interact, creating a ranking system.
Flashpop/Getty Images. Discussions about race and sexuality have been amplified the last decade or so, and Gen Alphas got a front row seat to the sociopolitical discourse. In fact, the ...
Thus, the daughter of the alpha female will immediately be placed above all other females in the group. The alpha female leads the group, while the male role is more to manage conflict within the group and to defend it. Female gestation lasts around 5.7 months. [10] She will give birth to one infant every two years. Weaning occurs at 4–5 months.
In some species, there are hermaphrodites, i.e., individuals that can function reproductively as either female or male. [2] There are also some species in which only one sex is present, temporarily or permanently. This can be due to parthenogenesis, the act of a female reproducing without fertilization.
Two different genes, each with five exons and four introns, designated as SRD5A1 and SDR5A2, encode two different 5α-reductases. The human 5α-reductase-2 gene (SRD5A2) is located on the short arm of chromosome 2 at band 23 and encodes a 254 amino acid protein, called 5α-reductase type 2.