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Horses can breed with Przewalski's horse to produce fertile hybrids. Mule, a cross of female horse and a male donkey. Hinny, a cross between a female donkey and a male horse. Mules and hinnies are examples of reciprocal hybrids. Kunga, a cross between a donkey and a Syrian wild ass. Zebroids. Zeedonk or zonkey, a zebra/donkey cross. Zorse, a ...
Many animal species have specific mating (or breeding) periods e.g. (seasonal breeding) so that offspring are born or hatch at an optimal time. In marine species with limited mobility and external fertilisation like corals , sea urchins and clams , the timing of the common spawning is the only externally visible form of sexual behaviour.
A survey of damsel and dragonflies reveals characteristic cloacal pincher mating damage in 20–80 percent of the males, indicating a fairly high occurrence of sexual coupling between males. [71] [72] Male flour beetles engage in same-sex coupling to practice mating and to rid themselves of "old, less effective" sperm.
Giraffes in Kenya; giraffes have been called "especially gay" for engaging in male-male sexual behavior more often than male-female (heterosexual) sex. [1] [2]This is a list of animals for which there is documented evidence of homosexual behavior.
Observed non-procreative sexual activities include non-copulatory mounting (without insertion, or by a female, or by a younger male who does not yet produce semen), oral sex, genital stimulation, anal stimulation, interspecies mating, same-sex sexual interaction, [2] [3] and acts of affection, although it is doubted that they have done this ...
These breeding males also have short tenure, and it is common for groups of males who do not have harems to attack a breeding male in order to gain reproductive access to his females. In some cases, polygyny can lead to aggression between males. An example of species that exhibit male-male aggression under polygynous system is Allobates femoralis.
In dogs, the male has a knot in his penis that gets engorged with blood and ties the female, locking them together during copulation, until the act is complete. Male dogs have evolved this mechanism during mating in order to prevent other males from penetration whilst they are and the use of the tie enables them to be more likely to inseminate ...
The distinction is hotly debated between a standardized breed, a developing breed with an open studbook, a registry of recognized crossbred horses, and a designer crossbred. For the purposes of this list, certain groups of horses that have an organization or registry that records individual animals for breeding purposes, at least in some ...