Penis
Domestic cats have barbed penises, with about 120–150 one millimeter long backwards-pointing spines. Upon withdrawal of the penis, the spines rake the walls of the female's vagina, which is a trigger for ovulation. Lions also have barbed penises. Male felids urinate backwards by curving the tip of the glans penis backward. When male cheetahs urine-mark their territories, they stand one meter away from a tree or rock surface with the tail raised, pointing the penis either horizontally backward or 60° upward.
Jungle cat
The jungle cat is a medium-sized, long-legged cat, and the largest of the extant "Felis" species. The head-and-body length is typically between . This cat stands nearly at shoulder and weighs . Its body size decreases from west (Israel) to east (India); this was attributed to greater competition from small cats in the east; body size shows a similar decrease from the northern latitudes toward the tropics. Sexually dimorphic, females tend to be smaller and lighter than males. The face is long and narrow, with a white muzzle. The large, pointed ears, in length and reddish brown on the back, are set close together; a small tuft of black hairs, nearly long, emerges from the tip of both ears. The eyes have yellow irides and elliptical pupils; white lines can be seen around the eye. Dark lines run from the corner of the eyes down the sides of the nose and a dark patch marks the nose. The skull is fairly broad in the region of the zygomatic arch; hence the head of this cat appears relatively rounder.