humankind and nature good versus evil horrors of science evolution society and class So, in the end, above ground you must have the Haves, pursuing pleasure and comfort and beauty, and below ground the Have-nots, the Workers getting continually adapted to the conditions of their labour. We improve our favourite plants and animals and how few they are-gradually by selective breeding: now a new and better peach, now a seedless grape, now a sweeter and larger flower, now a more convenient breed of cattle. Plainly, this second species of Man was subterranean. There were three circumstances in particular which made me think that its rare emergence above ground was the outcome of a long-continued underground habit. In the first place, there was the bleached look common in most animals that live largely in the dark-the white fish of the Kentucky caves, for instance.