CLIMATE CHANGE AND THE INVENTION OF CLOTHES T he human need for clothes did not start out from any sense of modesty nor a desire to decorate ourselves: naked hunter-gatherers, such as the Australian Aborigines, can easily disprove those theories. This is likewise for theories of clothing origins that are based on social purposes, such as displaying social roles. Of course, these motivesmodesty and displayare often the main reason why we wear clothes in the modern world. And, like a lot of modern things, they are rather contradictory: we like to show ourselves, and we also like to cover ourselves. Clothes embody these ambivalent feelings about our bodies. Display and modesty make more sense as later motives: they arose as reasons to wear clothes once we had already adopted clothing. And yet, these were the motives that finally made clothes indispensable and permanent. The psychosocial need for clothes played a big role in our modern developmentin the emergence of agriculture, for example, as we shall see. So, we should not discount the roles of modesty and display, but in searching for original causes, we have a couple of more respectable candidates. First, is our biological nakedness: we lack natural body cover in the form of fur. As mentioned in the first chapter, this is an unusual trait for any mammal, though not unique: some other species also became naked. And it is true that our own nakedness varies quite markedly and is never complete: we still retain some body hairsome people more than othersbut we are nonetheless naked in a biological sense. In a moment, we shall look at the questions of when and why our hominin ancestors lost their fur cover.