Dungeons and Dragons 5th Edition Monster Manual pg 318
Baboon
Small beast,
Armor Class: 12
Hit Points: 3 (1D6)
Speed:
30 ft
, climb: 30 ft
Skills: Pack Tactics: The Baboon has advantage on an attack roll against a creature if at least one of the Baboon's allies is within 5 feet of the creature and the ally isn't incapacitated.
Challenge Rating: 0
Actions
Bite: Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit: 2 (1D4+1) Piercing Damage
Large and powerfully built monkeys. Not at strong as an Ape but none the less, considerably powerful. Unlike Apes, the Baboon can and will attack in packs to defend it's territory. They usually form groups or "Troops" numbering a few hundred.