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According to David M. Buss of the University of Texas at Austin, humans depend on several successful strategies for mating, which they inherited from their ancestors. These strategies include: long-term, short-term and extra-pair mating. However, each sex has different mating strategies including th


The male dog mounts the female from behind and inserts his penis. The penis then swells and locks into the female's vagina. The process typically lasts somewhere between five and 20 minutes.


Chickens mate when a rooster and a hen each brings an external orifice called a cloaca into contact with one another, according to Real Clear Science. The cloaca is found on both roosters and hens. When a rooster and a hen place their respective cloaca in contact with one another, sperm passes from


Birds mate by rubbing their cloaca together in what scientists call a cloacal kiss. Birds of both sexes have a cloaca, which is an opening that swells and sticks out of the body slightly during mating season.


Although morally reprehensible, dogs and humans can mate. However, no pregnancy can result from their copulation.


Birds that mate for life include the bald eagle, California condor, Atlantic puffin, black vulture and the whooping crane. Other birds include the mute swan, scarlet macaw and Laysan albatross.


Snakes mate by wrapping their tails around each other until both tails meet the cloaca, which is the area for reproduction and waste excretion. The male extends and inserts his sex organs, known as the hemipenes, which expel sperm into the female.


Cows mate by insemination from bulls during their monthly estrus, which lasts from four to 30 hours. Cows only accept bulls during this time. A cow's visible signs of heat include redness and swelling of the vulva, restlessness, and the riding of other cattle, both male and female.


A female cat is ready to mate when she reaches puberty, which is at about 6 months old. Puberty in female cats is called estrus, which is when she goes into heat and begins her fertility cycles.


Rabbits mate when the male rabbit, known as the buck, mounts the female rabbit, known as the doe, from behind. When mating is finished, the buck throws himself off of the doe backward.