The sun heat and melanin
Those that do not have melanin are unfortunate. Unfortunately those that have little to no melanin do not have the same luxurious relationship with the sun as those with melanin. The sun provides life to all living entities. Without the sun earth, animals, plants and humans would not be able to sustain. In fact, it wouldn’t even exist. The sun is bright and hot. Scientists are still perplexed by the sun and unable to explain its total purpose.