The male version of cows. They are almost always sold in villages which sell cows, but there will rarely be more than two or three at most. They cannot be milked (obviously), and carry the same weight. (pre 3.15)
(3.15) Bulls can carry 273 lb. making them useful pack animals for trading trips.
Like rams, bulls will sometimes try to defend cows and other bulls. Unlike rams, however, bulls can be large enough to rival stags in size, making their attempts at defense much more potent.