Tame
Naturalists also have an additional option in some combats; if fighting an animal -- a rat or fish, for example -- A Naturalist can try to Tame the animal. Taming an animal will give exp, but less than if the creature was defeated in combat, and the creature will not drop items.
You stretch out your hand, making a fist but extending your pinky and thumb. You make an odd keening noise while slowly rotating your fist back and forth. The trick works, and the animal decides you're a friend instead of a foe!
Neighborhood Sewers
sewer rat of unusual size -- 16 exp
sewer crocodile -- 18 exp
Dank and Rusty Maze
bold cat -- 15 exp
cold bat -- 17 exp
Porcelain Bay
orca with rocket launcher -- 48 exp
rabid dogfish -- 48 exp
ravenous guppy -- 44 exp
squidopus -- 45 exp
Outskirts of Area 54
colossal ant -- 45 exp
cyclopean scorpion -- 51 exp
Gila monstrosity -- 46 exp
mutant fire ant -- 45 exp
oversize rattlesnake -- 48 exp
tarantula gargantua -- 49 exp