White Tiger Against Siberian Tiger

White tigers are a kind of tiger whose fur is white or almost white. This coloration is caused by a recessive gene. White tigers have been known to inhabit many parts of East Asia, including India and China. However, their current range has been much reduced due to excessive poaching.
Compared to orange tigers without the white gene, white tigers tend to be larger both at birth and at full adult size. This may have given them an advantage in the wild despite their unusual coloration. Heterozygous orange tigers also tend to be larger than other orange tigers. Kailash Sankhala, the director of the New Delhi Zoo in the 1960s, said "one of the functions of the white gene may have been to keep a size gene in the population, in case it's ever needed."