Your comparison is moot. If I were to select a squad of long distance endurance athletes, I would look to those of Kenyan stock before I’d look to Icelandic. W

Your comparison is moot. If I were to select a squad of long distance endurance athletes, I would look to those of Kenyan stock before I’d look to Icelandic. We are animals, it may not be politically correct but animal husbandry (science) applies.