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Almost all mammal penises have 
During musth, a male elephant may urinate with the penis still in the sheath, which causes the urine to spray on the hind legs.Sukumar, pp. 100–08.
Male dogs and wild dogs have a large and conspicuous penile sheath.
In stallions, the retractor penis muscle contracts to retract the stallion's penis into the sheath and relaxes to allow the penis to extend from the sheath.
The penile sheath of a male axis deer is elongated and urine-stained. When rubbing trees with their horns, these stags sometimes move the penis back and forth rapidly inside its sheath. Male
Adaptations for urinary marking in rodents: Prepuce length and morphology
." Journal of Reproduction and Fertility 44.3 (1975): 567-570.
foreskin
In male Human body, human anatomy, the foreskin, also known as the prepuce (), is the double-layered fold of Human skin, skin, Mucous membrane, mucosal and Muscle tissue, muscular tissue at the distal end of the human penis that covers the glans ...
s or prepuces. In non-human mammals, the prepuce is sometimes called the penile sheath or preputial sheath.
In koala
The koala (''Phascolarctos cinereus''), sometimes inaccurately called the koala bear, is an arboreal herbivorous marsupial native to Australia. It is the only Extant taxon, extant representative of the Family (biology), family ''Phascolar ...
s, the foreskin contains naturally occurring bacteria that play an important role in fertilization. In some bat species, the prepuce contains an erectile tissue structure called the ''accessory corpus cavernosum''.
During musth, a male elephant may urinate with the penis still in the sheath, which causes the urine to spray on the hind legs.Sukumar, pp. 100–08.
Male dogs and wild dogs have a large and conspicuous penile sheath.
In stallions, the retractor penis muscle contracts to retract the stallion's penis into the sheath and relaxes to allow the penis to extend from the sheath.
The penile sheath of a male axis deer is elongated and urine-stained. When rubbing trees with their horns, these stags sometimes move the penis back and forth rapidly inside its sheath. Male bison
A bison (: bison) is a large bovine in the genus ''Bison'' (from Greek, meaning 'wild ox') within the tribe Bovini. Two extant taxon, extant and numerous extinction, extinct species are recognised.
Of the two surviving species, the American ...
and fallow deer
Fallow deer is the common name for species of deer in the genus ''Dama'' of subfamily Cervinae. There are two living species, the European fallow deer (''Dama dama''), native to Europe and Anatolia, and the Persian fallow deer (''Dama mesopotamic ...
have tufts of fur at the end of their penile sheaths.
In rodents, the length of the prepuce is related to urine marking behavior.Maruniak, J. A., Claude Desjardins, and F. H. Bronson.Adaptations for urinary marking in rodents: Prepuce length and morphology
." Journal of Reproduction and Fertility 44.3 (1975): 567-570.
See also
* Clitoral sheath * Horse sheath cleaning * Preputial glands, glands which are found in the prepuce of some male mammalsReferences
Further reading
* * * * * * * * * * * * * *{{cite book , author1=Debra M. Eldredge , author2=Delbert G. Carlson , author3=Liisa D. Carlson , author4=James M. Giffin , title=Cat Owner's Home Veterinary Handbook, url=https://books.google.com/books?id=DZ-xTql76HgC&q=penis+sheath, accessdate=7 June 2013, date=7 January 2008, publisher=John Wiley & Sons, isbn=978-0-470-22767-1 Mammal male reproductive system Penis