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The face is framed by long hairs which form whiskers; these are generally more conspicuous in males. The ears are rounded and rather small, and are black on their dorsal side, with a conspicuous central white spot. The ventral parts are usually white. The whole body is marked with dark stripes of various lengths, breadths, and forms. The colour of stripes is generally black.
Claws are normally drawn back into their sheaths and are bared only for catching prey or in defence. Teeth of tigers are exceptionally stout. Canines are long and slightly curved; they are the longest among living Felidae. The average height of crown of the upper canine is about 80 mm.
In zoos, tigers have lived for 20 to 26 years, which also seems to be their longevity in the wild.
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