cavy vs Cavia cobaya

cavy and Cavia cobaya both are nouns.

Word	Noun	Adjective	Verb	Adverb
cavy	Yes	No	No	No
Cavia cobaya	Yes	No	No	No

As nouns, Cavia cobaya is a hyponym of cavy; that is, Cavia cobaya is a word with a more specific, narrower meaning than cavy:

cavy: short-tailed rough-haired South American rodent
Cavia cobaya: stout-bodied nearly tailless domesticated cavy; often kept as a pet and widely used in research

Other hyponyms of cavy include guinea pig, aperea, Cavia porcellus, wild cavy.

cavy (noun)	Cavia cobaya (noun)
short-tailed rough-haired South American rodent	stout-bodied nearly tailless domesticated cavy; often kept as a pet and widely used in research