Answer :
Final answer:
Griffin, from H.G. Wells' 'The Invisible Man', doesn't darken his skin in the story. Instead, he becomes invisible, and attempts to reverse this make his skin transparent, not dark. Human skin color, however, can darken naturally due to an increase in melanin as a response to more exposure to UV radiation.
Explanation:
The question refers to a character named Griffin, likely from H.G. Wells' novel, 'The Invisible Man'. In the story, Griffin is a scientist who invents a way to change a body's refractive index to that of air, resulting in invisibility. However, as the question is about 'darkening' Griffin's skin, it seems there may be some confusion. Griffin never darkens his skin in the story. In fact, his attempts to reverse the invisibility process left his skin transparent, rather than dark.
However, the reference supplied does provide some insight into how skin pigmentation works biologically. The human skin color can range from very light to very dark, depending on the amount melanin the body produces. People who have origins in sunnier regions near the equator have developed more melanin, or dark skin, to block out excess UV radiation. This is a biological adaptation for survival and varies widely among individuals.
Learn more about Griffin's Skin here:
https://brainly.com/question/35996195
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