This Study Should Make You NERVOUS. The 1st rat is perfectly healthy, and when he's put in a tub of water, he finds his way to safety really quickly. The 2nd rat has been eating the equivalent of the North American diet. The 2nd rat doesn't know where to

This Study Should Make You NERVOUS. The 1st rat is perfectly healthy, and when he's put in a tub of water, he finds his way to safety really quickly. The 2nd rat has been eating the equivalent of the North American diet. The 2nd rat doesn't know where to