Volume 11, Issue 2, 2011
Special Session on Mark Richard’s When Truth Gives Out
The Argument from Marginal Cases
is Species a Relevant Difference
Marginal humans are not rational yet we still think they are morally considerable. This is inconsistent with denying animals moral status on the basis of their irrationality. Therefore, either marginal humans and animals are both morally considerable or neither are. In this paper I consider a major objection to this argument: that species is a relevant difference between humans animals.