bovine vs Bos taurus

bovine and Bos taurus both are nouns.

Word	Noun	Adjective	Verb	Adverb
bovine	Yes	Yes	No	No
Bos taurus	Yes	No	No	No

As nouns, Bos taurus is a hyponym of bovine; that is, Bos taurus is a word with a more specific, narrower meaning than bovine:

Other hyponyms of bovine include ox, wild ox, cattle, cows, kine, oxen, Bos indicus, Brahma, Brahman, Brahmin.

bovine (noun)	Bos taurus (noun)
any of various members of the genus Bos	domesticated bovine animals as a group regardless of sex or age

bovine (adjective)	Bos taurus (adjective)
of or relating to or belonging to the genus Bos (cattle)
dull and slow-moving and stolid; like an ox