[Heartlander]

If the hypothesis is drawn specifically enough and in a way which allows testable predictions to be made and those predictions are subsequently matched by the totality of the evidence, yes.

So, sociobiology is a scientific ‘theory’ and explains morality within current science void of design?

[Ichneumon]

So, sociobiology is a scientific ‘theory’ and explains morality within current science void of design?

If you mean does it explain all morality, no, because some morality is based not on our biological imperatives, but are the result of culture and/or human thought. But yes, some of our instincts and drives due to our biology shape our notions of morality.