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When animal sexual behaviour is reproductively motivated, it is often termed mating or copulation; for most non-human mammals, mating and copulation occur at oestrus (the most fertile period in the mammalian female's reproductive cycle), which increases the chances of successful impregnation.
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 . Many aquatic animals use external fertilization , whereas internal fertilization may have developed from a need to maintain gametes in a liquid ...
The diversity of mating strategies within animal populations may be understood through evolutionary game theory concepts that assess the costs and benefits of reproductive decision-making. The Evolutionarily Stable Strategy (ESS) concept provides a particularly useful framework for considering alternative behaviours as they relate to fitness.
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]
Sexual behavior of dingoes; Sexual behavior of dolphins; Sexual behavior of elephants; Sexual behavior of impalas; Sexual behavior of kangaroos; Sexual behavior of lions; Sexual behavior of pinnipeds; Sexual behavior of raccoons; Sexual behavior of wolves; Sexual coercion among animals; Sexual swelling; Sexually dimorphic nucleus; Social ...
This is typical in animals, though the number of chromosome sets and how that number changes in sexual reproduction varies, especially among plants, fungi, and other eukaryotes. [ 2 ] [ 3 ] In placental mammals , sperm cells exit the penis through the male urethra and enter the vagina during copulation , [ 4 ] [ 5 ] while egg cells enter the ...
The mammalian male reproductive system contains two main divisions, the penis and the testicles, the latter of which are where sperm are produced and usually held in a scrotum. [5] In humans, both of these organs are outside the abdominal cavity , but they can be primarily housed within the abdomen in other animals.
The Coolidge effect is attributed to an increase in dopamine levels and the subsequent effect upon an animal's limbic system. [15] In a study conducted by Fiorino et al., male rats were used to study the role of the mesolimbic dopamine system on their sexual behaviour. [15]