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The term is also used in the context of third-party insemination, where a male who is not the woman's usual sexual partner (i.e., a sperm donor) fathers a child for the woman by providing his sperm through sexual intercourse rather than by providing his sperm for it to be used to produce a pregnancy in the woman by artificial means. [10]
Because of this, there are generally more males available to mate at a given time, making females a limited resource. [4] [5] This leads males to evolve aggressive mating behaviors which can help them acquire mates. [5] Sexual coercion has been observed in many clades, including mammals, birds, insects, and fish. [6]
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Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. [1]
Gorilla Great reed warbler. When two animals mate, they both share an interest in the success of the offspring, though often to different extremes. Unless the male and female are perfectly monogamous, meaning that they mate for life and take no other partners, even after the original mate's death, the amount of parental care will vary. [7]
Human–animal marriage is a marriage between a human and a non-human animal. This topic has appeared in mythology and magical fiction . [ 1 ] In the 21st century, there have been numerous reports from around the world of humans marrying their pets and other animals.
In depictions where the animal takes the active role, the woman is often depicted having sexual intercourse with a donkey. [140] In a temple in Vijayanagara, a menstruating woman is depicted having sexual intercourse with a donkey or horse. [141] There are gardabha stones in various parts of India.
This can happen if a dominant male is removed from a group of females. The largest female in the harem can switch sex over a few days and replace the dominant male. [72] This is found amongst coral reef fishes such as groupers, parrotfishes and wrasses. As an example, most wrasses are protogynous hermaphrodites within a haremic mating system.