The history of life is a nearly four billion year old story of transformative change. This change ranges from dramatic macroscopic innovations such as the evolu

These original contributions by symbiosis biologists and evolutionary theorists address the adequacy of the prevailing neo-Darwinian concept of evolution in the

The theory can successfully unify innovations that occur at different levels of organization.

Resource added for the Prototype and Design program 106142.

Evolutionary innovations—the bony skeleton of vertebrates, avian flight, or the insect pollination system of angiosperms, for example—have in recent years b