11.   There were examples of prion diseases, but the ones that afflicted humans were so rare as to be medical oddities.

12.   There were humans of all shapes and sizes, richly and ostentatiously dressed, and a large mingling of equally impressive exters.

13.   Humans are on the highest rung of the evolutionary ladder.

14.   For thousands of years chasing down game was the main activity in which humans were involved.

15.   Humans are the only mammals not endowed with a natural defense against the elements, such as fur or a thick hide.

16.   Humans are unique among mammals in several respects.

17.   How are humans different from the rest of creation?

18.   Most humans are social beings.

19.   All humans are born into families -- and families begin with the joining together of a man and a woman in marriage.