A tomcat is a sexually mature entire (un-neutered) male cat. The name tomcat is derived from an eighteenth-century work of fiction titled The Life and Adventures of a Cat authored by Willoughby Mynors. The main character was Tom the Cat, a promiscuous male cat. Before the publication of The Life and Adventures of a Cat, males were known as rams, boars or gibs.

Tomcats are larger and more muscular than neuters and female cats, with a broad neck, and prominent stud (tomcat) jowls on the face. The testicles are clearly visible in the adult tomcat.

Tomcats have two things on their mind, protecting their territory and finding females to mate with. As such, tomcats tend to roam and engage in fights with other males in the area. Squabbles over territory and females may be restricted to verbalization, with howling and yowling, if this doesn’t chase off the intruder, it will progress to a full-blown fight.

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