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There are two subspecies: the Chinese water deer (H. i. inermis) and the Korean water deer (H. i. argyropus).The water deer is superficially more similar to a musk deer than a true deer; despite anatomical peculiarities, including a pair of prominent tusks (downward-pointing canine teeth) and its lack of antlers, it is classified as a cervid.
The sika deer (Cervus nippon), also known as the Northern spotted deer or the Japanese deer, is a species of deer native to much of East Asia and introduced to other parts of the world. Previously found from northern Vietnam in the south to the Russian Far East in the north, [ 1 ] it was hunted to the brink of extinction in the 19th century.
The Chinese water deer, tufted deer, and muntjac have enlarged upper canine teeth forming sharp tusks, while other species often lack upper canines altogether. The cheek teeth of deer have crescent ridges of enamel, which enable them to grind a wide variety of vegetation. [ 45 ]
The musk deer evolving in the mountain forests of eastern Asia spread widely since the Pleistocene in the mountain regions of Central, South-East Asia and in the north it spread to the south of the Russian Far East. [citation needed] The musk deer also inhabited Sakhalin Island before its separation from the continent during the Quaternary period.
Skull of a buck showing the characteristic teeth. Musk deer resemble small deer, with a stocky build and hind legs longer than their front legs. They are about 80 to 100 cm (31 to 39 in) long, 50 to 70 cm (20 to 28 in) high at the shoulder, and weigh between 7 and 17 kg (15 and 37 lb).
We share our sharp canine teeth with lions, hippos, and other mammals. But believe it or not, they have nothing to do with tearing into meat. Instead, our ancestors originally used them to fight ...
Humans have sharp canine teeth, but we don't use them to tear meat. Like other apes, our ancestors used them to fight for mating rights. Why humans have sharp front teeth
The Ryukyu dwarf deer was originally thought to be a browser. Using mesowear analysis, its teeth were shown to have sharp cusps with high profiles, which implied a significant amount of browse in diets; deer with a more abrasive diet tend to have more rounded lower-profile cusps. [6]