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Ivory is a hard, white material from the tusks (traditionally from elephants) and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is the same, regardless of the species of origin, but ivory contains structures of mineralised collagen ...
Walrus ivory, also known as morse, [1] comes from two modified upper canines of a walrus. The tusks grow throughout life and may, in the Pacific walrus, attain a length of one metre. [ 2 ] Walrus teeth are commercially carved and traded; the average walrus tooth has a rounded, irregular peg shape and is approximately 5 cm in length.
Tusks are thought to have adapted to the extra-oral environments, like dry or aquatic or arctic. [1] In most tusked species both the males and the females have tusks although the males' are larger. Most mammals with tusks have a pair of them growing out from either side of the mouth. Tusks are generally curved and have a smooth, continuous surface.
The desire for ivory has made elephants popular targets for illegal poaching, and it can have a devastating impact on ... In most animals, tusks are an example of elongated canines — the teeth ...
African elephants generally have much larger tusks than Asian elephants. While both male and female elephants can have tusks, you can expect African elephants to have more impressive tasks than ...
Armed with its ivory tusks, walruses have been known to fatally injure polar bears in battles if the latter follows the other into the water, where the bear is at a disadvantage. [90] Polar bear–walrus battles are often extremely protracted and exhausting, and bears have been known to break away from the attack after injuring a walrus.
Giraffidae: Giraffids have a pair of skin covered bony bumps on their heads, called ossicones. Cervidae: Most deer have antlers, which are not true horns due to lacking a bone core and made of keratin. Rhinocerotidae: The "horns" of rhinos are made of keratin and lack a bone core.
Ivory from Africa came from one of two types of elephant in Africa; the more desirable bush elephant with larger and heavier tusks or the forest elephant with smaller and straighter tusks. [2] Ivory tusks as well as ivory objects such as carved masks, salt cellars, oliphants and other emblems of importance have been traded and used as gifts and ...