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.
Bobcat
The adult bobcat is long from the head to the base of the tail, averaging ; the stubby tail adds and its "bobbed" appearance gives the species its name. An adult stands about at the shoulders. Adult males can range in weight from , with an average of ; females at , with an average of . The largest bobcat accurately measured on record weighed , although unverified reports have them reaching . Furthermore, a June 20, 2012 report of a New Hampshire roadkill specimen listed the animal's weight at . The largest-bodied bobcats are from eastern Canada and northern New England of the subspecies "L. r. gigas", while the smallest are from the southeastern subspecies "L. r. floridanus", particularly those in the southern Appalachians. The bobcat is muscular, and its hind legs are longer than its front legs, giving it a bobbing gait. At birth, it weighs and is about in length. By its first birthday, it weighs about .