In this episode, a question that haunted Charles Darwin: if natural selection boils down to survival of the fittest, how do you explain why one creature might stick its neck out for another?
Is there such a thing as a purely selfless deed--one with no hidden motives whatsoever? Walter F. Rutkowski from the Carnegie Hero Fund spends his days measuring good deeds by some very stringent criteria--such as risking your life "to an extraordinary degree while saving or attempting to save ...
