Well, I for 1 believe deeply in the "evolution" theory, so there is *no* reason to suppose that animal magnetism just evolved by "chance." Therefore, when early "man" (or "woman, but its not usually siad like that, sorry) walked upright he (or she) had to know where the outside of the dark cave really was. I pretty much assume that caves come are made in rock and rock has some iron in it. Therefore, to find the opening of the cave (necessary when u have to get out in a hurry like when your enemies are coming) the people with animal magnetism could get out and survive for another day to reproduce and make more animal magnetism people.
So you see, if it looks like a fish and breathes water it probably is a fish after all, y' know.
So, fast forward to today's timeframe: you have the decendants of the survivors of the animal magnetism test of escaping the cave, and those who did not escape trapped inside with smoke and enemies and no food.
So, who would survive a little more? And *remember* it doesn't take "much" to make an evolutionary advantage over hundreds (some say thousands) of years!!!
The problem is that no-one to-day knows how to measure how long it took in those smoke filled caves to make a real difference in the "DNA" of your average "cave-man" or "cave-woman" (though those terms *may* not be "pollitically correct" in today's language, even though probably there *were* caves with these early "men" or "women" in them -- hence "cave-men.")
I would bet you anytime dimes to donuts that the guy who can control his animal magnetism would beat the band to the cave door -- and be outside and safe in a N.Y. minute.
Hey, if you bring a knife to a gunfight, what do you think will happen, anyway.
Does this help?