Since SkySplash hasn't done this test, I decided to have a go at it. Especially since I remember melanism being dominant.
Turns out Albinism is always dominant:
It seems like there is many secrets hidden beneath the surface of Niche. Perhaps there is a tribe made up of rogue males and females that we never get to see. Maybe the arrival of a new tribe on an island, makes most of the "rogue" tribe leaves.
I've also seen quite a few rogues who have similar genetics. Maybe it's that nichelings have been plagued by deformities for so long, it's just common to have those genes.
Or the rogues whos appearance is like the rogue males, simply choose not to force mate. If that is true though, it would suggest a deep emotional intelligence, similar to humans.
I believe palm trees spawn on the shore, because generally when people imagine palm trees, they imagine it on the beach. And to put something other than crabbits on the beach.