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A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. [ 1] Most organisms that create their offspring using sexual reproduction have two common sexes and a few less common intersex variations. In some species, there are hermaphrodites. [ 2]
Otherkin are a subculture of people who identify as partially or entirely nonhuman. Some otherkin believe their identity derives from spiritual phenomena (such as possessing a nonhuman soul, reincarnation, or the will of God ), ancestry, [ 1] symbolism, or metaphor. [ 2] Others attribute it to unusual psychology or neurodivergence and do not ...
Hermaphrodite. v. t. e. Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, including characteristics not directly involved in reproduction. [ 1] The condition occurs in most dioecious species, which consist of most animals and some plants.
Mandrills. Adult male mandrills with alpha status display vivid coloration on their skin, while those with beta status are more dull in colour. Both types of males engage in mating, but only the dominant alpha males have the ability to produce offspring. Male mandrills sometimes fight for breeding rights which results in dominance.
Homosexual behaviour is demonstrated by 120 known species of birds. [41] While an uptick in research on bird homosexuality – and animal homosexuality in general – has been coming out in recent years, it's common for some authors to labour in articulating the view any root cause or function of bird homosexuality is poorly understood.
Dioecy. Gonochorism. Hermaphrodite. v. t. e. Temperature-dependent sex determination ( TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring. [ 1] It is observed in reptiles and teleost fish, with some reports of it occurring in species of ...
List of animal names. Mother sea otter with sleeping pup, Morro Bay, California. In the English language, many animals have different names depending on whether they are male, female, young, domesticated, or in groups. The best-known source of many English words used for collective groupings of animals is The Book of Saint Albans, an essay on ...
The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths ), the schistosome family of flatworms, and some reptiles, e.g. majority of snakes, lacertid lizards and monitors, including Komodo dragons.