predatory animal vs beast

predatory animal and beast both are nouns.

Word	Noun	Adjective	Verb	Adverb
predatory animal	Yes	No	No	No
beast	Yes	No	No	No

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

Other hypernyms of predatory animal include animal, animate being, brute, creature, fauna.

predatory animal (noun)	beast (noun)
any animal that lives by preying on other animals	a living organism characterized by voluntary movement
	a cruelly rapacious person