Every once in a great while, a white tiger appears in the wild.  White tigers differ from ordinary orange tigers (if a tiger can be referred to as ordinary), in having ice-blue eyes, a pink nose, and creamy white fur with chocolate stripes. White tigers are not albinos (even though more rare than the White tiger are the true albino tigers and the equally rare solid black tigers, known as melanistic tigers); their color is caused by a double recessive allele.  A Bengal tiger with two normal alleles or one normal and one white allele is colored orange. Only a double dose of the mutant allele results in white tigers. How frequently do white tigers appear in nature?  No one knows. But we do know that in the last 100 years, only about a dozen such wild white tigers have been seen in India.  During this same century, the Bengal tiger population has dropped from 40,000 to a low of 1,800 tigers, and approximately 100,000 have lived and died, suggesting that as few as one in every 10,000 tigers is white.