Rhinoceros horns don't contain ivory, which is a hard, white material found in animal teeth and tusks. A rhinoceros' horn consists of keratin, the protein found in hair and animal hooves, and deposits of calcium and mela... More »

Ivory is used to make chop-sticks, ornaments, jewelry, hair accessories, bow clips, needles, bones, buttons, hair pins, spear tips, handles, billiard balls and medicines, according to The Atlantic and Animal Rights Actio... More »

Ivory is mainly used for decorative objects and fine art pieces. It is also used for jewelry and other fine accessories. More »

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The visible ivory tusks on elephants are made primarily of dentine and include small amounts of enamel. Tusk length varies among African and Asian elephants and is hereditary. The upper incisors may grow to 10 feet or mo... More »

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Fun facts about Paul Revere include that he used his silversmith skills to practice amateur dentistry, wiring dentures made from animal teeth or walrus tusks into his patients' mouths. According to legend, he made wooden... More »

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Some extinct mammals include the Javan tiger, Tasmanian tiger, Barbary lion, west African black rhinoceros and quagga. Some mammals such as the koala lemur, woolly rhinoceros, dire wolf, ground sloths and saber-tooth tig... More »

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Facts about the rhinoceros include that the white rhino is the second-largest land animal, with the elephant being the largest. A rhino weighs up to 8,000 pounds and stands up to 6 feet tall. Rhinos live about 35 years i... More »