Creatures with Cocks: Hilarious Adults-Only Cartoons for Lovers of the Natural World and Dick Jokes

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a b c Youngquist, Robert S; Threlfall, Walter R (2006-11-23). Current Therapy in Large Animal Theriogenology. Elsevier Health Sciences. ISBN 9781437713404. Archived from the original on 2013-05-11. Skurski, D.; Waterman, J. (2005). "Xerus inauris". Mammalian Species. 781: 1–4. doi: 10.1644/781.1. Online Etymology Dictionary". Etymonline.com. Archived from the original on 2011-06-06 . Retrieved 2011-05-28. New data on armadillos (Xenarthra: Dasypodidae) for Central Patagonia, Argentina." Agustin M. Abba, et al. All members of Carnivora (except hyenas) have a baculum. [63] Canine penises have a structure at the base called the bulbus glandis. [64] [65]

Roze, Uldis (2009). The North American Porcupine. Cornell University Press. ISBN 978-0-8014-4646-7 . Retrieved 25 July 2013. Renfree, Marilyn; Hugh Tyndale-Biscoe (1987-01-30). Reproductive Physiology of Marsupials. Cambridge University Press. ISBN 9780521337922. Archived from the original on 11 January 2014 . Retrieved 5 May 2013. In giant anteaters, the (retracted) penis and testes are located internally between the rectum and urinary bladder. [136] Krause, William J. (1 March 2008). An Atlas of Opossum Organogenesis. Universal-Publishers. ISBN 978-1-58112-969-4 . Retrieved 20 July 2013. In Thomasomys ucucha the glans penis is rounded, short, and small and is superficially divided into left and right halves by a trough at the top and a ridge at the bottom. [100]Winkelmann's mouse can easily be distinguished from its close relatives by the shape of its penis, which has a partially corrugated glans. [104] Naugher, K. B. (2004). "Anteaters ( Myrmecophagidae)". In Hutchins, M.; Kleiman, D. G; Geist, V.; McDade, M. С. (eds.). Grzimek's Animal Life Encyclopedia. Vol.13 (2nded.). Gale. pp.171–79. ISBN 978-0-7876-7750-3.

The record for the largest penis size to body size ratio is held by the barnacle. The barnacle's penis can grow to up to forty times its own body length. This enables them to reach the nearest female for fertilization. Walker, Donald F.; Vaughan, John T. (1 June 1980). Bovine and equine urogenital surgery. Lea & Febiger. ISBN 978-0-8121-0284-0 . Retrieved 23 July 2013. In Transandinomys talamancae, the outer surface of the penis is mostly covered by small spines, but there is a broad band of nonspinous tissue. [96] Male orb spiders detach their penis and insert them in female spiders to impregnate them, says Jennifer Welsh at LiveScience. Having penis-detached intercourse allows the male spiders to not only escape the hungry female — who successfully eats the male 75 percent of the time — but also gives them a better chance of fending off competing males. New research suggests that without the extra weight bogging them down, the new eunuchs become "superior fighters," with enhanced endurance that gives them a better shot at surviving. Larry Vogelnest; Rupert Woods (18 August 2008). Medicine of Australian Mammals. Csiro Publishing. ISBN 978-0-643-09928-9. Archived from the original on 26 March 2014 . Retrieved 23 July 2013.

Some features of the accessory glands in the male genital region vary among oryzomyines. In Transandinomys talamancae, [97] a single pair of preputial glands is present at the penis. As is usual for sigmodontines, there are two pairs of ventral prostate glands and a single pair of anterior and dorsal prostate glands. Part of the end of the vesicular gland is irregularly folded, not smooth as in most oryzomyines. [98] Szykman, M.; Van Horn, R. C.; Engh, A.L. Boydston; Holekamp, K. E. (2007). "Courtship and mating in free-living spotted hyenas" (PDF). Behaviour. 144 (7): 815–846. CiteSeerX 10.1.1.630.5755. doi: 10.1163/156853907781476418. Archived (PDF) from the original on 2012-11-30.

Würsig, Bernd; Wursig, Melany (2009-07-17). The Dusky Dolphin: Master Acrobat Off Different Shores - Bernd G. Würsig, Bernd Wursig, Melany Wursig. ISBN 9780080920351. Archived from the original on 2013-10-11 . Retrieved 2012-11-22. Kohler-Rollefson, I. U. (12 April 1991). " Camelus dromedarius" (PDF). Mammalian Species (375): 1–8. doi: 10.2307/3504297. JSTOR 3504297. Archived from the original (PDF) on 21 May 2013. Mammalogy. Jones & Bartlett Learning. 21 April 2011. pp.389–. ISBN 978-0-7637-6299-5. Archived from the original on 26 March 2014 . Retrieved 5 May 2013. Equine Research (2004). Horse Conformation: Structure, Soundness, and Performance. Lyons Press. ISBN 978-1-59228-487-0. Archived from the original on 7 July 2014 . Retrieved 23 July 2013.

a b Arkhipkin, A.I.; Laptikhovsky, V.V. (2010). "Observation of penis elongation in Onykia ingens: implications for spermatophore transfer in deep-water squid". Journal of Molluscan Studies. 76 (3): 299–300. doi: 10.1093/mollus/eyq019.