Rhinoceros, Warbeast* (CR 5)

Large Animal
Alignment: Always neutral
Initiative: +0; Senses: low-light vision, Listen +13, and Spot +3


AC: 20 (-1 size, +7 natural, +4 scale barding), touch 9, flat-footed 20
Hit Dice: 9d8+63 (103 hp)
Fort +13, Ref +6, Will +5
Speed: 30 ft. (base 40 ft.)
Space: 15 ft./10 ft.
Base Attack +6; Grapple +6
Attack: Gore +14 melee
Full Attack: Gore +14 melee
Damage: Gore 2d6+13
Special Attacks/Actions: -
Abilities: Str 29, Dex 10, Con 24, Int 2, Wis 15, Cha 2
Special Qualities: Combative mount
Feats: -
Skills: Listen +13 and Spot +3
Advancement: 10-13 HD (Large); 14-27 HD (Huge)
Climate/Terrain: Warm plains
Organization: Solitary
Treasure/Possessions: None

Source: Monster Manual II

The market price for a warbeast rhinoceros is 775 gp.

Combat

Combative Mount (Ex): A rider on a warbeast rhinoceros gets a +2 circumstance bonus on Ride checks. A warbeast rhinoceros is proficient with light, medium, and heavy armor.