homeotherm vs fauna

homeotherm and fauna both are nouns.

Word	Noun	Adjective	Verb	Adverb
homeotherm	Yes	No	No	No
fauna	Yes	No	No	No

As nouns, fauna is a hypernym of homeotherm; that is, fauna is a word with a broader meaning than homeotherm:

homeotherm: an animal that has a body temperature that is relatively constant and independent of the environmental temperature
fauna: a living organism characterized by voluntary movement

Other hypernyms of homeotherm include animal, animate being, beast, brute, creature.

homeotherm (noun)	fauna (noun)
an animal that has a body temperature that is relatively constant and independent of the environmental temperature	a living organism characterized by voluntary movement
	all the animal life in a particular region or period