range animal vs creature

range animal and creature both are nouns.

Word	Noun	Adjective	Verb	Adverb
range animal	Yes	No	No	No
creature	Yes	No	No	No

As nouns, creature is a hypernym of range animal; that is, creature is a word with a broader meaning than range animal:

range animal: any animal that lives and grazes in the grassy open land of western North America (especially horses, cattle, sheep)
creature: a living organism characterized by voluntary movement

Other hypernyms of range animal include animal, animate being, beast, brute, fauna.

range animal (noun)	creature (noun)
any animal that lives and grazes in the grassy open land of western North America (especially horses, cattle, sheep)	a living organism characterized by voluntary movement
	a living being
	a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else