| The point is our evolution took place in the warm climate in Africa. This is when we loose our fur, not 100% of it, though. Evolutionary achievements can be very diverse, but the final result is always adaptation and survival. Humans developed good brains, which helped to compensate looses in muscular strength, fur, claws, etc.. Making tools and skills to use them helped us to tame animals and exploit all ecological niches simultaneously. The advantage was so overwhelming so now we can worry, if it would bring us to self destruction so prolific and greedy we are getting.
Hunt with dogs |