Darwinian Natural Selection usually brings to mind images of Tennyson's "Nature red in tooth and claw," so it is quite unexpected to discover that The Descent of Man argues that Natural Selection promotes sympathy, social feeling, unselfishness, and even self-sacrifice. In fact, Darwin even argues that sympathy and social feeling, which moved human beings up the evolutionary ladder, most likely developed among comparatively less imposing, weaker beings. Paradoxically, weakness could have been an advantage. Before we examine Darwin's reasoning, let us look at his explanation how and why human beings developed morality.
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