By the Alternian definition: Culling (v.)- to reduce the population of the species by selective slaughter.  You can be killed for any sort of non-beneficial mutation or deformity. Basically, “deviation from the norm will be punished unless it is exploitable”

No it was just a planet in the C universe that trolls would eventually inhabit. And trolls don’t make baby trolls in the same intimate manner humans do. They just have to get all their baby fluids and mix em together and the Mother Grub will do the rest.

The reason they can breathe is the same reason their houses still have electricity and how they have wifi everywhere.  Cause the story wouldn’t be much fun without it.

The same reason Dirk was able to raise himself. They’re just that すごい

Jade’s shirt design was decided by fans
Source

That remark was made by the Narrator, not Rose

Aside for some possibly ironic flirtations with Dave she has not expressed any attraction to any dudes

The ancestors are post-scratch versions of the Alpha trolls. And they do look similar so I’m not quite sure what you’re talking about. And differences in appearance can be attributed to life choices or the fact the the ancestors are adults while the Alpha trolls are like 19/20

But they aren’t biologically related so either way it doesn’t matter

Maybe. I prefer to think the personalities melded together like in Davepeta.