Albino animals, as well as rare all-white species and leucistic creatures, are the same as any other animals, but with a coloration that makes them (sometimes literally) one in a million.
Albinism is an umbrella term that covers a variety of genetic pigmentation disorders. Most creatures born with albinism are born with white or pink skin and fur, and some (not all) have reddish or violet eyes as well. Albinism is associated with poor eyesight and a higher susceptibility to skin cancers, but animals and people with albinism are otherwise no different from their peers.
Take a look at their pictures: