I think your approach
@K174 is an okay first step, after all you're trying to make aliens compelling in some manner to readers. And you're using the tried and trusted - aliens as humans with a rubber face tactic
. Nothing wrong with that, we all grew up with
Star Trek where all the main alien races are really just humans but with some aspect of our nature amped up or removed.
Personally I'm more interested in seeing depictions of truly
alien aliens. Not just aliens that may have arisen from wildy divergent geneses via natural evolution (also I do think there will be interesting similarities because of convergent evolution as an aside), but those, as we are on the cusp of, have the ability to change and alter themselves via their intelligence, i.e. teleological evolution. If we humans were to continue for a million years what sort of beings would we alter ourselves into? And then there's hive minds, symbiotic beings etc.
However, that's just my preference. And there's a time and a place for Catmen or aliens with cornish pasties stuck on their heads, as Star Trek/Star Wars proves!
So stepping into your idea,
What about love?
I think you have to step further back. Now this is a complex topic, so one has to be careful. I am sure there will a multi-faceted answer to the next question. Why have we evolved to have emotions like that? I'd argue that part of the answer is something to do with our frailty.
We are born helpless. I am sure many of you know that even in the age of central heating and supermarkets, bringing a baby into the world is still a stressful endevaour. What about our ancestors in the rift valley about 200,000 years ago. Naked, on foot and living off the land. An animal having a baby like a human in that environment looks crazy. He'she will be unable to even move properly on foot for years and will need to be weaned for much longer - perhaps food could be prepared, in the way that is still done in some hunter gather tribes by women chewing plants and then passing the mastigated mush to their infants. But either way a human is generally helpless, as, I believe, we evolved to put a great deal of energy and growth into developing the brain rather than the body. And it is years and years before the human animal comes close to being able to survive by itself.
So the mother has to have deep bonds with her children and they return that. Of course we further aid this because we are social animals, so alongside this we have the father, the aunts & uncles, the cousins etc. that make up the social group. And these social bonds must also play a part in evolving the emotion of love.
To take a counter example, a great many mammalian predators seem, from my incomplete knowledge, to be in a different place. So looking at animals such as tigers, there are no social groupings.... Yes the mother/cub relationship is very strong, she takes care of them, but what does the male 'feel' about his offspring. Probably very little. In fact he may even attack and kill his offspring if he was given the opportunity. And then there are other 'flavours' of social structure. Elephants are dominated by their matrons - so yes there is a complex social order - but what about the males, most of which seem to be shunned and ejected when they get big and aggressive.* Do these animals have an emotional state we could call 'love'. Maybe but it would be different.
Now it's an interesting debate if an animal like a tiger could ever develop a technological intelligence, given that we believe social structures are so important in developing that. (Of course we as writers could just stike in anything plausible if we want a race of tiger people!)
But I think my point is, perhaps by tweaking the evolutionary path that your aliens took perhaps this could have profound impact on the types of emotions they will have or even subtly different ones. What if we weren't helpless when born but took much less time to develop into an animal that could have survived? Would we have been much less social creatures? Colder and more pragmatic? What if we took the elephant model - and society was a female thing, males being generally ejected out into the wilds. What sort of thought processes/emotions would be required to make this work?
Anyway good question. And I think I've blathered too long for the moment.
Cheers!
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* This is my knowledge from watching BBC nature shows, so I may we wildly incorrect or probably a bit incorrect. Apologies if so.