The material below is Open Game Content from a 3PP Source
This rhinoceros has a low-slung head with twisted ears that lie back along its neck.
Rhinoceros CR 4 (XP 1,200)
N Large animal
Init +0; Senses scent; Perception +12
AC 16, touch 9, flat-footed 16 (+7 natural, –1 size)
hp 42 (5d8+20)
Fort +10, Ref +4, Will +2
Speed 40 ft.
Melee gore +8 (2d6+9)
Space 10 ft.; Reach 5 ft.
Special Attacks powerful charge (gore, 4d6+12)
Environment warm plains
Organization solitary, pair, or herd (3–12)
The rhinoceros feeds on leafy plants, branches, and even thorny shrubs. Its thick hide is a mottled gray color, and it can run surprisingly fast for a beast of its size. The rhinoceros is notoriously short-tempered and prone to attacking anything it perceives as approaching too closely (generally within a distance of 80 feet—the distance of a single charge—for most rhinos).
Starting Statistics: Size Medium; AC +4 natural; Speed 40 ft.; Attack gore (1d8); Ability Scores Str 14, Dex 14, Con 15, Int 2, Wis 13, Cha 5; Special Qualities scent.
7th-Level Advancement: Size Large; AC +3 natural armor; Attack gore (2d6); Ability Scores Str +8, Dex –2, Con +4; Special Qualities powerful charge.