Ok, so here's the deal...
I played for several hundred hours in my first world with default world generation settings.
I found a really cool island in the middle of a big lake and I built my base on it.
I was excited about building a sailboat... but then I realized it was going to be pretty worthless in a world with no oceans.
So, I copied my entire island with world editor, created a new world with oceans, then pasted my island into an ocean in the new world.
So now I got to keep my awesome island base AND also have a world with oceans to explore with my fancy new sailboat!
There's just one problem... No wild animals spawn on my island anymore. My island was a forest biome, so I would get wolves, moose, bighorn sheep, the occasional bear, etc.
(Also, rifts never spawn on my island anymore either... but this doesn't really bother me.)
I miss the wild animals though.
I'm assuming this is because I pasted my island into an "ocean biome" so none of the forest animals will spawn anymore.
So finally to the question... Does anyone know a way to reclassify my island as a forest biome so that wild animals will once again spawn on it?
And here are a few vanity shots of my fancy island for fun.