zooerastia vs sex activity

zooerastia and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
zooerastia	Yes	No	No	No
sex activity	Yes	No	No	No

As nouns, sex activity is a hypernym of zooerastia; that is, sex activity is a word with a broader meaning than zooerastia:

Other hypernyms of zooerastia include sex, sexual activity, sexual practice.

zooerastia (noun)	sex activity (noun)
sexual activity between a person and an animal	activities associated with sexual intercourse