scavenger vs animal

scavenger and animal both are nouns.

Word	Noun	Adjective	Verb	Adverb
scavenger	Yes	No	No	No
animal	Yes	Yes	No	No

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

scavenger: any animal that feeds on refuse and other decaying organic matter
animal: a living organism characterized by voluntary movement

Other hypernyms of scavenger include animate being, beast, brute, creature, fauna.

scavenger (noun)	animal (noun)
any animal that feeds on refuse and other decaying organic matter	a living organism characterized by voluntary movement
someone who collects things that have been discarded by others
a chemical agent that is added to a chemical mixture to counteract the effects of impurities

scavenger (adjective)	animal (adjective)
	marked by the appetites and passions of the body