This Element develops a novel account of structuralism and functionalism in terms of explanatory strategies. This reveals the possibility of integrating the two strategies; the explanatory successes of evolutionary-developmental biology essentially depend on such integration.

This Element develops a novel account of structuralism and functionalism in terms of explanatory strategies. This reveals the possibility of integrating the two strategies; the explanatory successes of evolutionary-developmental biology essentially depend on such integration.

This Element introduces Aristotle's doctrine of hylomorphism, which provides an account of substances in terms of their 'matter' and 'form', adapting and applying it to the interface between physics and biology. This title is also available as Open Access on Cambridge Core.