Rambouillet vs Ovis aries

Rambouillet and Ovis aries both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rambouillet	Yes	No	No	No
Ovis aries	Yes	No	No	No

As nouns, Ovis aries is a hypernym of Rambouillet; that is, Ovis aries is a word with a broader meaning than Rambouillet:

Rambouillet: hardy sheep developed from the merino producing both good mutton and fine wool
Ovis aries: any of various breeds raised for wool or edible meat or skin

Other hypernyms of Rambouillet include domestic sheep.

Rambouillet (noun)	Ovis aries (noun)
hardy sheep developed from the merino producing both good mutton and fine wool	any of various breeds raised for wool or edible meat or skin