More muscular and aggressive than the females of the same species (i.e. cows proper), bulls have long been an important symbol in many religions, including for sacrifices.
These animals play a significant role in beef ranching, dairy farming, and a variety of sporting and cultural activities, including bullfighting and bull riding.
Colloquially, people unfamiliar with cattle may also refer to steers and heifers as "cows", and bovines of aggressive or long-horned breeds as "bulls" regardless of sex.
[3] Improper or late castration on a bull results in him becoming a coarse steer, also known as a stag in Australia, Canada, and New Zealand.
The word "bull" also denotes the males of other bovines, including bison and water buffalo, as well as many other species of large animals, including elephants, rhinos, seals and walruses, hippos, camels, giraffes, elk, moose, whales, dolphins, and antelopes.
These features assist bulls in fighting for domination over a herd, giving the winner superior access to cows for reproduction.
[8] Castrated male cattle are physically similar to females in build and horn shape, although if allowed to reach maturity, they may be considerably taller than either bulls or cows, with heavily muscled shoulders and necks.
Protrusion is not affected much by erection, but more by relaxation of the retractor penis muscle and straightening of the sigmoid flexure.
A bull is typically ready for slaughter one or two months sooner than a castrated male or a female, and produces proportionately more and leaner muscle.
In sales catalogues, this measurement is frequently reported in addition to weight and other performance data such as estimated breed value.
[27][28][29] The need to move a bull in and out of its pen to cover cows exposes the handler to serious jeopardy of life and limb.
This is a rigid pole about 1 m (3 ft) long with a clip at one end; this attaches to the ring and allows the bull both to be led and to be held away from his handler.
If an aggressive bull is allowed to graze outside, additional precautions may be needed to help avoid him harming people.
In larger pastures, particularly where a bull is kept with other cattle, the animals may simply be fed from a pickup truck or tractor, the vehicle itself providing some protection for the humans involved.
AI may also be used in conjunction with embryo transfer to allow cattle producers to add new breeding to their herds.
[35][36] The once-popular sport of bull-baiting, in which a bull is attacked by specially bred and trained dogs (which came to be known as bulldogs), was banned in England by the Cruelty to Animals Act 1835.
The mythic Bull of Heavens plays a role in the ancient Sumerian Epic of Gilgamesh, dating as far back as 2150 BC.