Poisons in nature are part of the natural defense of an organism, whether it is a plant or an animal---these toxins act as protection against predators. However, the discovery of these natural toxins by humans has led to their unique use by some cultures. For example, deep in the rain forests of western Colombia, the Emberá Chocó Indians practiced the custom of tipping darts with frog toxins for use with their blowguns in their hunt for big game. The dart tip is rubbed multip