animal scientist vs biologist

animal scientist and biologist both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal scientist	Yes	No	No	No
biologist	Yes	No	No	No

As nouns, biologist is a hypernym of animal scientist; that is, biologist is a word with a broader meaning than animal scientist:

animal scientist: a specialist in the branch of biology dealing with animals
biologist: (biology) a scientist who studies living organisms

Other hypernyms of animal scientist include life scientist.

animal scientist (noun)	biologist (noun)
a specialist in the branch of biology dealing with animals	(biology) a scientist who studies living organisms