system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are most of the fastest sprinters and best marathon runners of all time black?

There has only ever been 1 white male to run under 10 seconds in the Olympics 100m and he was the first of purely European descent. Is it something about the skin colour geners that affect the potential of an athlete?
gpt
Not the color of the skin, but the genetics and culture.  The pigmints in your skin don't give you super powers, but there are some muscle traits that are passed down genetically, a form of natural selection.  Some of the african cultures are more closely linked to hunting tribes rather than a culture that focuses on agriculture - like European civilizations.  This caused a need for people who could run fast for longer, and people who could do this would provide for their family better, and thus they could have more offspring.