I read this story in a rather cheerful hard-nosed way till I got about halfway down Page 2, but there is something quite unbearable about the end.
I wonder if the researcher types, concentrating on the 'raised by dogs' differential, have attended properly to such other variables as foetal alcohol syndrome. Or genetic material, or cultural considerations. And I wonder most of all what moves a creature of one species -- not always female -- to mother a creature of another. Surely dogs kept by a family this degraded would have been more likely to eat a three-year-old child than to look after her.