There are so damned many chemicals in the air, the ground and the water it does not much matter what eats who where. You oughta see what and how they feed chickens. Beef? Pffftttt... I used to love salmon until concerns were raised about mercury. Mercury? I used to roll a ball of that in the palm of my hand, chasing boredom! Hell - I'd go back to caveman days if I wouldn't miss my iPhone too doggone much!