vertebrate foot vs pes

vertebrate foot and pes both are nouns.

Word	Noun	Adjective	Verb	Adverb
vertebrate foot	Yes	No	No	No
pes	Yes	No	No	No

As nouns, pes is a hyponym of vertebrate foot; that is, pes is a word with a more specific, narrower meaning than vertebrate foot:

Other hyponyms of vertebrate foot include animal foot, foot, foot, human foot.

vertebrate foot (noun)	pes (noun)
the extremity of the limb in vertebrates	the part of the leg of a human being below the ankle joint