There was an old Indian belief that by making love on the hide of their favorite animal, one could guarantee the health and prosperity of the offspring conceived thereupon. And so it goes that one Indian couple made love on a buffalo hide. Nine months later, they were blessed with a healthy baby son.

Yet another couple huddled together on the hide of a deer and they too were blessed with a very healthy baby son. But a third couple, whose favorite animal was a hippopotamus, were blessed with not one, but TWO very healthy baby sons at the conclusion of the nine month interval.

All of which proves the old theorem that:

The sons of the squaw of the hippopotamus are equal to the sons of the squaws of the other two hides.