As you’ll notice, Snuggles is a lot paler than his brother due to albinism. Albinism is caused by a genetic mutation in which the body produces less melanin, a pigment in the skin that makes it appear darker and may be helpful in protecting against UV rays. In snakes, it is more common to have partial amelanism rather than absolute albinism. In patterned snakes, these patterns usually appear as blue, peach, or yellow with red/pink eyes. Snakes with partial amelanism still produce pigment, but that pigment does not show up all over the body, so sometimes there will be areas of the body with pale, white patches. In Snuggles’s case, absolute albinism causes his entire body to be pale along with those pale red/pink eyes.
Burmese pythons are considered to be primitive snakes because they have two sets of functioning lungs and vestigial (left-over) hind limbs that are visible on either side of their cloaca!