The word in the sentence that is a plural common noun is ANIMALS.
Plural noun is a word that indicates that there are more than one person, animal, place, thing, or idea. When you talk of more than one of anything, you are using the plural nouns. Plural nouns are written using the same word and simply adding s, es, or ies to the end.
Animal is a singular noun. You add "s" to make it into a plural noun. Thus, ANIMALS.
