zooplankton vs beast

zooplankton and beast both are nouns.

Word	Noun	Adjective	Verb	Adverb
zooplankton	Yes	No	No	No
beast	Yes	No	No	No

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

zooplankton: animal constituent of plankton; mainly small crustaceans and fish larvae
beast: a living organism characterized by voluntary movement

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

zooplankton (noun)	beast (noun)
animal constituent of plankton; mainly small crustaceans and fish larvae	a living organism characterized by voluntary movement
	a cruelly rapacious person