I have long wondered what gender each of the alien lifeforms is. I know they're presented in a gender neutral way in the game, but something about their appearances and behaviors seems to suggest either masculinity of femininity.
From my perspective, the skulk and fade are rather masculine in their behavior and are most likely male. The gorge and onos, on the other hand, strike me as being female in one way or another. The lerk I'm a little unsure of, it seems more male to me but I can also see how it would be interpreted as being female.
I'd be interested in hearing other people's take on this pressing issue.