Pythagoras Was A Native American

On the banks of a river sat three Indian women, sitting on three different animal skins. On a deer skin was a woman with her son, and the son weighed 140 pounds. On a buffalo skin was another woman, and her son who weighed 160 pounds. And on a hippopotamus skin sat an immense Indian woman, who weighed 300 pounds herself. A Native American mathematician saw this and noted that the squaw on the hippopotamus was equal to the sons of the squaws on the other two hides.