my skitzo theory is hair functions as an electro-magnetic detector hair/whiskers both accumulate and are sensitive to electrical charge this explains the feeling of being watched, why predators don't hunt humans, why humans evolved to be hairless humans out-competed other sapiens because we don't have as much hair, so we don't accumulate as much electrical potential. this strategy required intelligence and verbal communication since humans can't communicate or hunt well using EM fields also ticks