A typical tiger is known to have orange fur with black stripes that run through it. But, over the years variation has occurred changing their colour to fit their changing environment.
If a white variant of the tiger was in a dark woodland environment it would be easily visible. This would scare away its prey as the white variant wouldn’t be able to stalk while camouflaged.
These tigers strive best in dark woodland environments as they can easily blend into their surroundings. This variation caused by their environment assists them in stalking their prey without alerting them.
Here we are presented with a white tiger. White tigers are a mutated variant of the commonly known orange tiger and they strive best in snowy environments.
These white tigers were caused by over-breeding which caused a mutation in the species. These variants of the tigers migrated into these snowy environments to enable them to be better camouflaged against their prey.
The same applies when an orange tiger is placed in a snowy environment providing no camouflage. If the orange tiger continued to live in this environment it would be extremely difficult to acquire food as prey would identity the tiger immediately. This is known as the theory of natural selection.