>>13985360>>13986015Thinking about it for a minute this is a less retarded proposition than it sounds, hair can become electrostatically charged and in theory radio/microwave radiation could be strong enough to turn hairs into little receivers that can discharge at the tips
But that is pretty far-fetched considering we never evolved near very strong radio sources (apart from some RF from the sun), metal would work better for screening EM waves anyway, and there are better explanations for why head hair evolved like you mentioned
