Evolutionary Trait

Now that I think about it, this could probably also go into other forum places, but it is Star Wars based.

So which one would I pick? Honestly, breathing under water would be quite cool. SO I choose that.

They in fact cannot breath under water, they can just hold their breath for a very long time, I believe hours in fact.

their wookieepedia article says they're capable of breathing underwater

I stand corrected. Could've sworn that I read somewhere that they couldn't breathe underwater.

I chose Bith intelligence because it's the most practical of all. While breathing underwater, or surviving in a vacuum have benefits, the practicality of these skills are questionable. Bith intelligence would allow for technological advances to create artificial equivalents for these natural abilities.