The ONLY way to produce a tiger or lion with a white coat is through inbreeding brother to sister or father to daughter; generation after generation after generation. The kind of severe inbreeding that is required to produce the mutation of a white coat also causes a number of other defects in these big cats.
A. Those little bumps are caused by keratosis pilaris, a common skin condition that usually affects the arms and thighs (although it sometimes appears on the buttocks and face, too). It's caused by a buildup of the protein keratin, which can plug a hair follicle, resulting in a bump.
What causes uneven skin tone? The main causes of uneven skin tone are hyperpigmentation, sun spots, hormones and discolouration due to acne scarring. An excess of melanin or pigment in the skin due to sun exposure creates freckles and eventually, isolated dark spots.