Almost all mammal penises have foreskins or prepuces. [1] In non-human mammals, the prepuce is sometimes called the penile sheath [2] or preputial sheath. [3]
In koalas, the foreskin contains naturally occurring bacteria that play an important role in fertilization. [4] In some bat species, the prepuce contains an erectile tissue structure called the accessory corpus cavernosum. [5]
During musth, a male elephant may urinate with the penis still in the sheath, which causes the urine to spray on the hind legs. [6]
Male dogs and wild dogs have a large and conspicuous penile sheath. [7]
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. [8]
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. [9] Male bison and fallow deer have tufts of fur at the end of their penile sheaths. [10]
In rodents, the length of the prepuce is related to urine marking behavior. [11]
penile sheath OR penis sheath OR prepuce.
penile sheath OR penis sheath OR preputial sheath OR prepuce.