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.
If an aggressive bull is allowed to graze outside, additional precautions may be needed to help avoid him harming people. Due to their temperament, handling of bulls requires precautions. Other than the few bulls needed for breeding, the vast majority of male cattle are castrated and slaughtered for meat before the age of three years, except where they are needed (castrated) as work oxen for haulage.
They are calculated from hip height and age. Bulls are usually about the same height as cows or a little taller, but because of the additional muscle and bone mass, they often weigh far more. It is not true, as is commonly believed, that bulls have horns and cows do not: the presence of horns depends on the breed, or in horned breeds on whether the horns have been disbudded.

Cattle that naturally do not have horns are referred to as polled, or muleys. Many men are attracted to the option of penis enlargement pills because they are an extremely convenient method.