keratin

The Horns of Pronghorns

By Mia McPherson|November 6th, 2012|Categories: Antelope Island State Park, Davis County, Pronghorn, Utah|Tags: adult, Antilocapra americana, autumn, buck, fall, horn sheath, keratin, male, outer sheath, Pronghorn, Pronghorn Antelope, pronghorns, regrowth, sheath growth, shed|

The horns of Pronghorns are composed of a permanent slender, laterally flattened blade of bone that is covered by a keratinous sheath.

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