Assertion: bighorn sheep's horn | /r/MadeOf | keratin
Facets:
value: with the larger front horn
type: OTHER
Source sentences:
text: Most sheep have large, curling horns that are made of keratin — the same stuff as fingernails.
text: Horns are made from keratin that makes them very strong.
text: Males, called rams, have large, curled horns that are made of keratin.
text: The horns are made of keratin, which is the same material that fingernails and hooves are made of, and is a fast growing substance.
text: The horns are made of keratin, the same type of protein that makes up hair and fingernails.
text: Two horns on the skull are made of keratin with the larger front horn typically 50 cm long, exceptionally up to 140 cm.
text: Horns are made from keratin that makes them very strong.