Reading studies into evolutionary psychology may enlighten you how wrong your contention that animals are essentially amoral is wrong.
We didn't evolve from modern apes; we share common ancestors. Humans are defined to be apes (of the superfamily Hominoidea, and of the family Hominidae) anyway, so what's your contention?
OOps!
We'd better inform THESE guys QUICK!!!
http://www.freerepublic.com/focus/f-news/1550799/posts