Poop has been around for as long as there have been animals to produce it. It's a constant, brown, smelly presence in all of our lives. But over the long stretch of history, humanity has come up with some brilliant and clever uses for it.
It turns out chimps at the zoo insist on repeatedly hurling their faeces at me because they're geniuses and not just because it's hilarious. Seriously. Scientists studied chimp throwing and developed the following axiom: The frequency and accuracy with which a chimpanzee throws objects—INCLUDING POOP—is directly correlated to its intelligence. It's good for society, too.