art vs taxidermy

art and taxidermy both are nouns.

Word	Noun	Adjective	Verb	Adverb
art	Yes	No	No	No
taxidermy	Yes	No	No	No

As nouns, taxidermy is a hyponym of art; that is, taxidermy is a word with a more specific, narrower meaning than art:

art: a superior skill that you can learn by study and practice and observation
taxidermy: the art of mounting the skins of animals so that they have lifelike appearance

art (noun)	taxidermy (noun)
the creation of beautiful or significant things	the art of mounting the skins of animals so that they have lifelike appearance
the products of human creativity; works of art collectively
a superior skill that you can learn by study and practice and observation
photographs or other visual representations in a printed publication