n medium animal 

Perception +8; low-light vision

Skills Acrobatics +8, Athletics +7, Stealth +8, Survival +8

Str +3 Dex +4 Con +3 Int -5 Wis +2 Cha +1

AC  18; Fort +9, Ref +10, Will +6

HP 30

Speed 30 feet, climb 20 feet; mountain stride

Melee [>] hoof +11 (finesse), Damage 1d8+5 bludgeoning

Melee [>] horn +11 (agile, finesse), Damage 1d6+5 piercing

Broken Thorns [>] Requirements The rosethorn ram damaged a creature with its horns on its most recent action this turn; Effect The ram breaks off one of the thorny protrusions of its horns and leaves it in the wound, dealing 1d6 persistent bleed damage.

Mountain Stride The Rosethorn ram ignores difficult terrain caused by narrow ledges and icy terrain, and reduces the effects it suffers from cold environments by one step.

Ram Charge [>>] The ram Strides twice in a straight line and then makes a horn Strike with a +1 circumstance bonus to its attack roll.

Bestiary 3, page 212.