n large animal 

Perception +8; low-light vision, scent (imprecise) 30 feet

Skills Acrobatics +9, Athletics +11, Stealth +7

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

AC  19; Fort +12, Ref +9, Will +6

HP 45

Speed 30 feet, climb 30 feet

Melee [>] fist +11 (agile, reach 10 feet), Damage 2d6+4 bludgeoning

Melee [>] jaws +11 (reach 5 feet), Damage 1d8+4 piercing

Frightening Display [>>] (auditory, emotion, fear, mental) The gorilla beats its chest in a terrifying display. Creatures within 30 feet must attempt a DC 20 Will save. While a creature is frightened by this ability, it is flat-footed to the gorilla. Critical Success No effect and temporarily immune for 1 minute.Success The creature is unaffected.Failure The creature is frightened 1.Critical Failure The creature is frightened 2.

Bestiary, page 23.