ABSTRACT
Evolutionary biologists are aware, of course, that natural selection only works in a particular environment. Traits that facilitate adaptation only develop and are selected for vis-à-vis adaptation to that environment. The importance of the environment of evolutionary adaptation (EEA) in developing those properties that are regarded as uniquely human, however, has generally been ignored or simply assumed and left in the background in the treatment of the evolution of human beings. This chapter focuses on the role of the EEA in producing cluster of properties upon which human nature supervenes. The cluster theory maintains that human nature is a function of many natural processes that result in various properties of human beings and a causal nexus that exists amongst those properties. Human nature is dynamic and changes along with the changes that occur in the cluster of properties that change along with the changes in the natural processes and feature that occur in the rest of the natural world.
