MICROANATOMY

Detailed explanation-1: -Rhino horns are composed largely of the protein keratin, also the chief component in hair, fingernails, and animal hooves. Many poisons are strongly alkaline (or basic), and may have reacted chemically with the keratin.

Detailed explanation-2: -Unlike most animal horns, which are comprised of a bony core coated by a relatively thin layer of keratin, rhino horns are solely made of keratin, a naturally produced protein that strengthens hair, skin, and nails in humans.

Detailed explanation-3: -Rhino horn is made up of keratin-the same protein which forms the basis of our hair and nails. Javan and greater one-horned rhinos only have one horn, whereas all the other rhino species have two horns.

Detailed explanation-4: -A Rhino’s horn is comprised of an outer layer of keratin and a dense centre of melanin and calcium deposits. Ivory, by comparison, is largely made up of dentine which is the primary material that makes teeth and other tusks.