herpetology vs zoology

herpetology and zoology both are nouns.

Word	Noun	Adjective	Verb	Adverb
herpetology	Yes	No	No	No
zoology	Yes	No	No	No

As nouns, zoology is a hypernym of herpetology; that is, zoology is a word with a broader meaning than herpetology:

Other hypernyms of herpetology include zoological science.

herpetology (noun)	zoology (noun)
the branch of zoology concerned with reptiles and amphibians	the branch of biology that studies animals
	all the animal life in a particular region or period