While such a species would be very interesting to me on a sci-fi basis, there's very little you can do with it on a story basis other than make it the villain.They may look alien, but in their gender and social makeup, they're downright Speilbergian. We have the "single father" striving to protect his "son." How original. The alien-ness is completely in how they look, not how they act - it's all just window-dressing.
How about really coming up with an alien species that doesn't map to human notions of gender or parenting? How about a genderless species that, like a lot of Earth species, survives by having a lot of offspring rather than worrying about the fate of any single one? The prawn parent could be guarding a whole herd of baby prawns. If one or a dozen gets killed, who cares? The parent is only interested in the survival of most of them, and will sacrifice a few for the survival of the group.
Instead of being a sop to the audience's sensibilities, that scenario would challenge those sensibilities. The audience might be "horrified" that the prawn parent won't safeguard all its offspring, but that's the point: it's doing what is right for its own species, and to hell with what the audience thinks!
Ah, frak it. I'm probably expecting too much of people again. They just want their dumbed-down, safe entertainment.
In D9 the story is set up to try to make the alien species sympathetic to the audience, and to create stakes for the audience to worry about.
If an alien species doesn't care if its offspring lives or dies, but just drops them off like tadpoles - well, there's not much reason for me to care about them either, now is there? If they don't care, why should I? If they see no stakes, why should I?
I don't think it's necessarily "dumbing it down" to give the aliens an emotional life that is accessible to the audience. Because if you don't, why should the audience be interested in your story?
If you go far enough afield, and create an alien species that shares no emotional frame of reference with humanity but is still a potential competitor for humanity - well, there's no story to tell there but Bug Hunt. Because if you take away the humanish characteristics of the prawns, they're just Alien and you need Ripley to kill them. Or they're the bugs from Starship Troopers, where even though you can kind of deduce their point of view, you still really don't give a damn. And that's not the story they wanted to tell in D9.
Exactly, Fluffy, thats the kind of thing I was trying to think of to say when I read that post. I can apprecaite trying to make something seem alien, or taking away the "Human" like approach to them, but if you go very far with that, why should I give a damn, when the point of the story is to give a damn?