cows vs Bos taurus

cows and Bos taurus both are nouns.

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

As nouns, cows and Bos taurus are synonyms defined as:

cows and Bos taurus: domesticated bovine animals as a group regardless of sex or age

Other synonyms of cows include cattle, kine, oxen.

cows (noun)	Bos taurus (noun)
domesticated bovine animals as a group regardless of sex or age	domesticated bovine animals as a group regardless of sex or age