White tigers have always been extremely rare in the wild.
White tigers are Bengal tigers with pink noses and white-to-cream colored fur with black, gray or chocolate-colored stripes; their eyes are usually blue, but may be green or amber. There are around 600 white tigers in the world.
Due to the small size of the gene pool, many white tigers suffer from health problems due to inbreeding. For this reason, responsible zoos refuse to breed two white tigers together. However, two white parents are the only way to ensure white cubs; if a white tiger mates with a partner that is heterozygous for the gene, only half of the offspring will be white.
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