CONSIDERING EVOLUTION OF THE HUMAN SKIN 2
Considering Evolution of the Human Skin
The skin of human origin is the most identifiable aspect of the human phenotype. It is
easily distinguished because of its unaided appearance, greatly facilitated by the abilities to
distribute heat of the body through sweating and various range of genetically determined colors
of the skin in a single species. For example, the dark skin was the original state of genus homo
which was greatly associated by loss of hair of the body. On the other hand, pigmentation of
melanin has been maintained by the natural selection. Over the years, human became
opinionated in protecting themselves from the harsh environment when they invented clothing
and shelter, thus they reduced the level of the impact of natural selection on human skin.
The species of choice is polar bears. Polar bears have skin visibly only on the nose and
footpads with a black color and they are well adapted to live in the arctic regions where there is
so much cold. The black color makes it possible for the bear to absorb energy sunlight for the
purposes of warming the body. The other defining characteristic is that their body is completely
furred white apart from the footpads and the nose. Adaptations of the polar bears were because
of evolution specifically to the Arctic generations that were less than 20,500, coming from the
brown bears not long ago than it is claimed (Liu et al., 2014). According to Arctic Research
Centre (2019), the two species of bears diverged hundred thousand of years ago. The species has
evolved progressively from brown furred bear to white- the absolute color that is likely to merge
with the ice covering surrounding they inhabit. The researchers have it that the brown bear
moved to the north region when the climate became slightly warm in the north after a cold period
began in their initial habitats. It is probable that a group of brown bears might have been isolated
and thus compelled to rapidly adapt to the new conditions that were characterized by colder
conditions (Drosophila 12 Genomes Consortium, 2007). In other words, changes in the color of

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Considering Evolution of the Human Skin

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