 An exclusively genealogical conception of human nature is clearly not well placed to fulfil an explanatory role comparable to that envisaged in the traditional package. What might have an explanatory function are the properties of the entities from which the taxon or its specimens are descended. Human nature, genealogically understood, might serve as the conduit for explanations in terms of such properties, but will not itself explain anything. After all, integration in a network of sexual reproduction will be partly definitive of the specimens of all sexual species, whilst what is to be explained will vary enormously across taxa.