People, navel-gazing and self-obsessed beings as we’re, are nothing if not relentlessly and unapologetically anthropocentric. We are inclined to assume that our expertise of the world is the one one which counts, and that something that’s totally different from us is both unusual, bizarre or in any other case unaccountable. Therefore we ask questions like, “Do canine have stomach buttons?” For all placental mammals, of which people are just one species, an umbilical twine is a crucial ...