"At the dawn of human civilization, one of the first ancient hunters throws a crude spear, no more than a sharpened stick, and by some miracle brings down a sickly animal at the back of a herd. The warrior drags it back to his camp where he quickly finds what is edible or useful on the animal. He discovers bones, skin, and teeth don't taste very good and decides to find other uses for them. Bones become weapons, teeth trinkets. Without much imagination the warrior uses the hide for the same purpose the animal used it for, protection from the elements and the environment. Over time the hide dries out naturally and the ancient man notices the hide is tougher and lighter. He'll think he won the prehistoric lottery until it rains or he falls into a river. Once the hide gets wet again it will start to rot and smell something awful. "