WHITE TIGER(Tigre Blanco)
The white tiger or bleached tiger is a pigmentation variant of the Bengal tiger, which is reported in the wild from time to time in the Indian states of Madhya Pradesh, Assam, West Bengal, Bihar, and Odisha in the Sunderbans region and especially in the former State of Rewa.
Such a tiger has the black stripes typical of the Bengal tiger but carries a white or near-white coat.
Variation
The white Bengal tigers are distinctive due to the color of their fur. The white fur caused by a lack of pigment pheomelanin, which is found in Bengal tigers with orange color fur. When compared to Bengal tigers, the white Bengal tigers tend to grow faster and heavier than the orange Bengal tiger.
They also tend to be somewhat bigger at birth, and as fully grown adults. White Bengal tigers are fully grown when they are 2–3 years of age. White male tigers reach weights of 200 to 230 kilograms (440 to 510 lb) and can grow up to 3 meters (9.8 ft) in length. As with all tigers, the white Bengal tiger’s stripes are like fingerprints, with no two tigers having the same pattern. The stripes of the tiger are a pigmentation of the skin; if an individual were to be shaved, its distinctive coat pattern would still be visible.
For a white Bengal tiger to be born, both parents must carry the unusual gene for white coloring, which only happens naturally about once in 10,000 births.
Dark-striped white individuals are well-documented in the Bengal tiger subspecies (Panthera tigris Tigris) as well as having been reported historically in several other subspecies.
Currently, several hundred white tigers are in captivity worldwide, with about one hundred being found in India. Their unique white color fur has made them popular in entertainment showcasing exotic animals, and at zoos.
Stripeless tigers
An additional genetic condition can result in the near-complete absence of stripes, making the tiger almost pure white. One such specimen was exhibited at Exeter Change in England in 1820, and described by Georges Cuvier as "A white variety of Tiger is sometimes seen, with the stripes very opaque, and not to be observed except in certain angles of light.
" Naturalist Richard Lydekker said that "a white tiger, in which the fur was of a creamy tint, with the usual stripes faintly visible in certain parts, was exhibited at the old menagerie at Exeter Change about the year 1820."
Hamilton-Smith said, "A wholly white tiger, with the stripe-pattern visible only under reflected light, like the pattern of a white tabby cat, was exhibited in the Exeter Change Menagerie in 1820.", and John George Wood stated that, "a creamy white, with the ordinary tigerine stripes so faintly marked that they were only visible in certain lights." Edwin Henry Landseer also drew this tigress in 1824.
Defects
Outside of India, inbred white tigers have been prone to crossed eyes, a condition known as strabismus, due to incorrectly routed visual pathways in the brains of white tigers. When stressed or confused, all white tigers cross their eyes.
Strabismus is associated with white tigers of mixed Bengal x Siberian ancestry. The only pure-Bengal white tiger reported to be cross-eyed was Mohini's daughter Rewati. Strabismus is directly linked to the white gene and is not a separate consequence of inbreeding.
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