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In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. [1] [2] This is an aspect of mating.
An intromittent organ is any external organ of a male organism that is specialized to deliver sperm during copulation. [ 1 ] [ 2 ] Intromittent organs are found most often in terrestrial species, as most non-mammalian aquatic species fertilize their eggs externally , although there are exceptions.
In biology, mating is the pairing of either opposite-sex or hermaphroditic organisms for the purposes of sexual reproduction. Fertilization is the fusion of two gametes . [ 1 ] Copulation is the union of the sex organs of two sexually reproducing animals for insemination and subsequent internal fertilization . [ 2 ]
Scientists who study these insects have occasionally called the gynosome a "female penis" [36] [37] and insisted to drop the definition of penis as "the male copulatory organ". [38] Motivations for using the term "female penis" include that such a term "is easier to understand and much more eye-catching" [ 39 ] and that the gynosome have ...
The penis is an intromittent organ with a long shaft, an enlarged bulbous-shaped tip called the glans and its foreskin for protection. Inside the penis is the urethra, which is used to ejaculate semen and to excrete urine. Both substances exit through the meatus.
During mating, a "copulatory tie" occurs in mammals such as fossas, [147] canids with the exception of African wild dogs, [148] and Japanese martens. [149] A "copulatory lock" also occurs in some primate species, such as Galago senegalensis. [150] The copulatory behaviour of many mammalian species is affected by sperm competition. [151]
A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction. Sex organs constitute the primary sex characteristics of an organism. Sex organs are responsible for producing and transporting gametes , as well as facilitating fertilization and supporting the development and birth of offspring.
In turtles and crocodilians, the male has a single median penis, while squamates, including snakes and lizards, possess a pair of hemipenes, only one of which is typically used in each session. Tuatara, however, lack copulatory organs, and so the male and female simply press their cloacas together as the male discharges sperm.