Search results
Results from the WOW.Com Content Network
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 male narwhal's straight single helical tusk, which usually grows out from the left of the mouth, is an exception to the typical features of tusks described above. Continuous growth of tusks ...
Horns are projections from the top of the head. True horns are found mainly among: Ruminant artiodactyls. Antilocapridae (); Bovidae (cattle, goats, antelopes etc.).; Giraffidae: Giraffids have a pair of skin covered bony bumps on their heads, called ossicones.
These cracks can be seen throughout the length of the tusk. Whole cross-sections of walrus tusks are generally oval with widely spaced indentations. The dentine is composed of two types: primary dentine and secondary (often called osteodentine). Primary dentine has a classical ivory appearance. Secondary dentine is marble or oatmeal-like.
The tusk, which could be anywhere from 11,700 to 75,000 years old, was found partially exposed from the mud bank. - Courtesy Eddie Templeton
The tusk Templeton found is so large because it came from a Columbian mammoth, an animal that could grow up to 15 feet tall at the shoulder and weigh in excess of 10 tons.
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 ...
Female tusks were smaller and thinner, 1.5–1.8 m (4 ft 11 in – 5 ft 11 in) and weighing 9 kg (20 lb). For comparison, the record for longest tusks of the African bush elephant is 3.4 m (11 ft). The sheaths of the tusks were parallel and spaced closely. About a quarter of the length was inside the sockets.
The tusks, particularly the upper set, work in much the same way as elephant tusks with all designs scaled down. Tusks are carved predominantly for the tourist trade in eastern and southern Africa. [citation needed] The head of the common warthog is large, with a mane down the spine to the middle of the back. [4] Sparse hair covers the body.