Rhino horn is made of ‘crushed hair’ rising from the rubbery arrival of the horn, chiefly around the base. And certainly  rhino horn is collected principally of keratin, a protein also found in human hair and fingernails. But pretty than being made of hollow fiber’s, rhino horn raises in coatings from specialized skin cells in layers, which are keratinized flattering hard and inert, with all cellular function ceasing. At the centre of the horn, there are layers of calcium and melanin, two resources that help to keep it even tougher Though the horns of Asian rhinos are smaller than their African foils, they are all made of keratin. Research proposes that if a rhino’s horn were to grow without any outside damage, it may not be in the horn figure we all know today, instead remaining as a cylinder. However, sunshine can damage the keratin fibres on the outside of the horn and common behaviour, such as scraping the horn on the crushed, trees or rocks, caring themselves  The same study confirmed that horns are refined by honing, likewise to a pencil.