Tamias striatus vs squirrel

Tamias striatus and squirrel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tamias striatus	Yes	No	No	No
squirrel	Yes	No	No	No

As nouns, squirrel is a hypernym of Tamias striatus; that is, squirrel is a word with a broader meaning than Tamias striatus:

Tamias striatus: small striped semiterrestrial eastern American squirrel with cheek pouches
squirrel: a kind of arboreal rodent having a long bushy tail

Tamias striatus (noun)	squirrel (noun)
small striped semiterrestrial eastern American squirrel with cheek pouches	a kind of arboreal rodent having a long bushy tail
	the fur of a squirrel