Hyena
Female hyenas have a pseudopenis, which is an inverted vagina that sticks out like a penis. Female hyenas urinate, give birth, and have sexual intercourse through their pseudopenis. The male hyena has to aim up and behind in order to inseminate the female, making rape virtually impossible. If rape were to happen, or if the female were to change her mind, she can flush the semen out with her urine. (New York Times)
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Brown Antechinuhttps://www.flickr.com/photos/stephenmahony/20056048328
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During mating season, which lasts about a day, this tiny rodent has as much sex as possible until it dies of exhaustion. None of the males survive after one generation. Like National Geographic says, "He exhausts himself so thoroughly that his body starts to fall apart. His blood courses with testosterone and stress hormones. His fur falls off. He bleeds internally. His immune system fails to fight off incoming infections, and he becomes riddled with gangrene." According to Fisher, this phenomenon is caused by the major increase of insects that happens about a month after their mating frenzy. They have timed their mating period so the females give birth around the same time the insect population rises.
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Porcupine |
According to Live Science, male porcupines will attempt to arouse females by peeing on her. New World porcupines are only in heat for about 12 hours a year. Males compete with each other for the female, the champion male guarding her until she is ready to ovulate. If she does not like the male, she will scream at him and run away, sometimes resorting to violence. If she does like him, she lifts her tail to allow him quill-free access.
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Giraffes
http://phenomena.nationalgeographic.com/2013/01/15/giraffe-necks-not-for-sex/
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Imagine you are a male giraffe. You are going about your business, eating the high leaves with your blue tongue, enjoying life. From across the savanna, you see a lady giraffe. You find yourself interested in her, so you walk over to where she is standing. In order to tell if she is fertile, you have to taste her pee. You reach down, and smack her in the bottom. A little bit of pee comes out. You reach down with your long neck, and lick the small puddle. Can it be? Yes! She is ovulating! You look up, to make sure she's still there. You try mounting her. After a few unsuccessful attempts, you accomplish your task. Intercourse between giraffes last only a few seconds, but in 14 months, there will be a new giraffe in the world. (Live Science)
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Citations
1.) Castro, Joseph. “Animal Sex: How Giraffes Do It.” LiveScience, Purch, 14 Nov. 2015, www.livescience.com/52804-animal-sex-giraffes.html.
2.) Castro, Joseph. “Animal Sex: How Porcupines Do It.” LiveScience, Purch, 2 Aug. 2014, www.livescience.com/47169-animal-sex-porcupines.html.
3.) Fishera1, Diana O., et al. “Diana O. Fisher.” Proceedings of the National Academy of Sciences, National Acad Sciences, 5 June 2013, www.pnas.org/content/110/44/17910.
4.) Holekamp, Kay E. “How Spotted Hyenas Mate.” The New York Times, The New York Times, 19 July 2011, scientistatwork.blogs.nytimes.com/2011/07/19/how-spotted-hyenas-mate/.
5.) Yong, Ed. “Why A Little Mammal Has So Much Sex That It Disintegrates.” Phenomena, National Geographic | Phenomena, 7 Oct. 2013, phenomena.nationalgeographic.com/2013/10/07/why-a-little-mammal-has-so-much-sex-that-it-disintegrates/.
2.) Castro, Joseph. “Animal Sex: How Porcupines Do It.” LiveScience, Purch, 2 Aug. 2014, www.livescience.com/47169-animal-sex-porcupines.html.
3.) Fishera1, Diana O., et al. “Diana O. Fisher.” Proceedings of the National Academy of Sciences, National Acad Sciences, 5 June 2013, www.pnas.org/content/110/44/17910.
4.) Holekamp, Kay E. “How Spotted Hyenas Mate.” The New York Times, The New York Times, 19 July 2011, scientistatwork.blogs.nytimes.com/2011/07/19/how-spotted-hyenas-mate/.
5.) Yong, Ed. “Why A Little Mammal Has So Much Sex That It Disintegrates.” Phenomena, National Geographic | Phenomena, 7 Oct. 2013, phenomena.nationalgeographic.com/2013/10/07/why-a-little-mammal-has-so-much-sex-that-it-disintegrates/.