Baboon

Baboons are powerful and aggressive primates adapted to life on the ground. They prefer open spaces but Climb trees to find safe places to rest overnight. A typical baboon is the size of a big dog.

Males can be 2 to 4 feet long and weigh as much as 90 pounds.

Source(s) 3.5E Monster Manual I, 3E Monster Manual I, Monstrous Compendium Volume 2, 1E Monster Manual 1, Monstrous Manual

Baboon
Medium animal
Hit Dice	1d8+1 (5 hp)
Initiative	+2
Speed	40 ft. (8 squares), Climb 30 ft.
Armor Class	13 (+2 Dexterity, +1 natural), touch 12, flat-footed 11
Base Attack/Grapple	+0/+2
Attack	Bite +2 melee (1d6+3)
Full Attack	Bite +2 melee (1d6+3)
Space/Reach	5 ft./5 ft.
Special Attacks	–
Special Qualities	Low-Light Vision, Scent
Saves	Fort +3, Ref +4, Will +1
Abilities	Strength 15, Dexterity 14, Constitution 12, Intelligence 2, Wisdom 12, Charisma 4
Skills	Climb +10, Listen +5, Spot +5
Feats	Alertness
Environment	Warm plains
Organization	Solitary or troop (10-40)
Challenge Rating	1/2
Advancement	2-3 HD (Medium)
Level Adjustment	–

Combat

Baboons usually attack in groups.

Skills Baboons have a +8 racial bonus on Climb checks and can always choose to take 10 on Climb checks, even if rushed or threatened.