fauna vs critter

Other hyponyms of fauna include pest, creepy-crawly, darter, peeper, homeotherm, homoiotherm, homotherm, ectotherm, poikilotherm, range animal, varment, varmint, scavenger, work animal, domestic animal, domesticated animal, feeder, migrator, molter, moulter, pet, stayer, stunt, marine animal, marine creature, sea animal, sea creature, female, male, adult, offspring, young, pureblood, purebred, thoroughbred, giant, survivor, mutant, herbivore, insectivore, acrodont, pleurodont, zooplankton, conceptus, embryo, fertilized egg, chordate, invertebrate, metazoan, omnivore, predator, predatory animal, prey, quarry, game, hexapod, biped, larva, racer, fictional animal, captive, mate, albino, spirit animal.