Dark skin and cancer suppression in humans—an evolutionary spandrel?

Key Points

• Cancer suppression appears more effective in individuals with higher melanin levels, which protects against UV radiation.
• The study indicates that natural selection might favor traits that enhance skin pigmentation in high UV environments.
• Analysis of the relationship between skin pigmentation and cancer incidence highlights evolutionary adaptations in humans.
• This research underscores the importance of understanding skin traits in public health and cancer prevention strategies.