Glenn says, "...it is behavior which marks us as humans not looks, not
genetics," but I always thought our genes made us human, both
theologically and scientifically. The bible has a lot to say about
decendency, and the usual definition of a species is related to the notion
of a gene pool. Phenotype, we suppose, permits indirect observation of
genes (genotype). Couldn't we say that a bipedal hominid with interesting
teeth (like Lucy) is sub human but we look to a phenotype called 'spiritual
awareness' to indicate a human?