Bengal tigers are unique among the big cats in that they appear in four distinct color varieties. The Bengal is the only subspecies of tiger to display the four distinct color schemes. A Bengal tiger mother can produce cubs with any of the color variations provided she carries the appropriate recessive genes and she can have cubs of any or all colors in the same litter. These colors are not mutations, rather they are natural color variations.
The very rare and amazing Strawberry Tiger also known as Golden Tabby Tiger is a color form of Bengal tiger not a separate specie as thought by people normally, as explained above its just a color variation caused by a gene named chinchilla.
The Strawberry Tiger has light gold fur, pale legs and faint orange stripes. Its fur tends to be much thicker than normal. It is so rare that currently fewer than 30 of these rare tigers remain in the world in captivity, but it is believed that some carriers of the gene(chinchilla) are still alive in the wild though the Strawberry Tiger hasn’t been seen in the wild in over a century as of now.