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.
Causes of Bumps on Skin. 1  Acne (Pimples) Acne is a localized skin inflammation as a result of overactivity of oil glands at the base of hair follicles. 2  Actinic Keratosis Actinic keratoses are rough, scaly patches of skin that are considered precancerous and are due to sun exposure.
Causes of Sagging Skin. Skin that has lost its spring isn't the result of just one cause. Several factors are likely responsible for making your once supple skin appear tired and droopy. The most common cause of sagging skin is aging. As you age, your skin loses the collagen and elastin, your skin's supportive connective tissue, that make it look soft, plump and youthful. In addition, facial muscles can weaken with age, which takes a toll too.