1. Why might Darwinian evolution incline us toward the idea that competition makes nature “red in tooth and claw?”

2. How are “nepotistic altruism” and “reciprocal altruism” explained in evolutionary terms?

3. How does Pinker explain the difference between human psychology and the psychology of insects that are members of larger social groups?

4. What is the problem with people caring more for their close relations or with parents preferring to save their own children instead of the children of others?

5. How does the modern theory of evolution fall “smack into the social contract tradition?”