Herpestes ichneumon vs mongoose

Herpestes ichneumon and mongoose both are nouns.

Word	Noun	Adjective	Verb	Adverb
Herpestes ichneumon	Yes	No	No	No
mongoose	Yes	No	No	No

As nouns, mongoose is a hypernym of Herpestes ichneumon; that is, mongoose is a word with a broader meaning than Herpestes ichneumon:

Herpestes ichneumon: northern African mongoose; in ancient times thought to devour crocodile eggs
mongoose: agile grizzled Old World viverrine; preys on snakes and rodents

Herpestes ichneumon (noun)	mongoose (noun)
northern African mongoose; in ancient times thought to devour crocodile eggs	agile grizzled Old World viverrine; preys on snakes and rodents