Group 1

Aquatic, anthropoid, articulate, best-of-breed, captive, juvenile, omnivorous, pedigree, saltwater, scaly, shy, temperate


Group 2

Amphibious, androgynous, cold-blooded, common, domestic, freshwater, housebroken, mature, purebred, simian, tolerant

Group 3

Arboreal, asexual, caged, diurnal, down, feathered, flying, gregarious, indigenous, migratory, social

Group 4

Draft, domesticated, fluffy, furry, great, horned, house-trained, lesser, lop-eared, naturalized, stuffed, tame

Group 5

Feral, extinct, furred, giant, higher, man-eating, native, nocturnal, petrified, predatory, territorial

Group 6

Mangy, parasitic, poisonous, polymorphous, pygmy, rabid, rogue, savage, spineless