Given natural selection is true, why do we still have genetic eye sight issues? Because I would think bad eye sight would get you killed (or at least the inability to eat) in a hunter gatherer society.
In: 4
Who’s to say that ancient eyesight was really horrendous relative to today and that natural selection has been improving eyesight for eons.
Also note that eye issue would impact people differently. A craftsman will suffer greatly from farsightedness. A hunter would have few if any serious issues from not being able to see close up.
Latest Answers