Herd Animal, Bison
This creature has small, upward-pointing horns, a shaggy coat of fur, and a large hump on its shoulders.

Bison (CR 4; XP 1,200)
N Large animal
Init +0; Senses low-light vision, scent; Perception +8
Defense
AC 17, touch 9, flat-footed 17
(+8 natural, –1 size)
hp 42 (5d8+20)
Fort +8, Ref +4, Will +1
Offense
Speed 40 ft.
Melee gore +10 (2d6+12)
Space 10 ft.; Reach 5 ft.
Special Attacks stampede (see aurochs), trample (2d6+12, R-DC 20)
Statistics
Str 27, Dex 10, Con 19, Int 2, Wis 11, Cha 4
Base Atk +3; CMB +12; CMD 22 (26 vs. trip)
Feats Endurance, Improved Bull Rush, Power Attack
Skills Perception +8
Ecology
Environment cold, plains
Organization solitary, pair, or herd (3–30)
Treasure none

Bison are large herd animals. They can grow as long as 12 feet and as tall as 7 feet at the shoulder. Average bison weigh 2,200 pounds. The bison's statistics can be used for almost any larger herd animal, such as the buffalo.

Bison frighten far less easily than their domesticated cousins and are much more aggressive when protecting the herd or their young. Adult bulls are extremely confontational in mating season, and even kill one another in pursuit of particular females. After mating season, herds of bison tend to separate into smaller herds in preparation for the arrival of new calves.

Bison companions are identical to aurochs animal companions.