Part I: A perspective that views Darwinism as either being originally pluralistic or having acquired such a pluralistic nature through modifications and borrowings over time.
Part II: A perspective blurring the boundaries between non-Darwinian and Darwinian traditions, either by contending that Darwinism itself was never quite as Darwinian as previously assumed, or that non-Darwinian traditions took on board various Darwinian components, when not fertilizing Darwinism directly.
Between a Darwinism reaching out to other research programs and non-Darwinian programs reaching out to Darwinism, the least that can be said is that this interweaving of intellectual threads blurs the historiographical field. This volume aims to open vital new avenues for approaching and reflecting on the development of evolutionary biology.