 The various developments in the above fields have led to an increasing philosophical interest in conceptual and explanatory issues arising from the new junction of development and evolution. These include clarifying what causal relationships and boundaries exist between the two realms, which different roles developmental processes play in recent evolutionary research, and how these new roles affect ontological frameworks of the organism. In addition, these developments have been accompanied by debates about the structure of explanations in developmental evolution. Finally, they have informed discussions on anthropological understandings and ethical questions concerning humans. We will now discuss the debates on these issues in detail. 