Specimen No. 023 ยท Terrestrial Mammal
Domestic Bull penis size & anatomy
Bos taurus
Reference measurement
Approx. 1.2 m / 3.9 ft
Approximate average
Veterinary reference describes mature bull penis as about 120 cm, with breed variation.
Measurement source: ScienceDirect Topics / Veterinary reference (opens in a new tab)
Did you know?
A mature bull's penis is about 120 cm long, though breeds vary.
Bulls have a fibroelastic penis, so erection involves relatively little increase in diameter.
An apical ligament near the free end helps keep the penis straight during intromission.