1.   A good example is the human species.

2.   According to Blackwell, morality involved the evolution of self-consciousness which had developed only in the human species.

3.   Biological evolution has made the human species more sensitive to its environment and more skillful in dealing with it.

4.   By analogy, we can see much the same process in our own human species, both biologically and culturally.

5.   In any event it seems likely that language is a relatively recent development in the human species.

6.   In the human species those burdens are represented by the acceptance of personal responsibility.

7.   No one thinks it an important proposition that what promotes survival of the human species promotes survival of the human species.

8.   So long as the human species remains at once sentient and vulnerable, fear will influence thoughts and actions.

9.   That is, the human species is capable of experiencing sensations equal in total to those experienced by all other species put together.

10.   The human species can no longer afford the luxury of such long double-takes or the leisurely changes of heart of entrenched scientists.