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For questions about a different and uncharacteristic species or object that has come to the world from another world. NOT for questions about extraterrestrials in their native environment.

8 votes

How would a planet-size entity reproduce?

Division. Some bacteria and other microbes reproduce in this fashion when they don't require a mate. There are many forms of Asexal reproduction that would work. Self-cloning through pathogenesis, cel …
Jack Aidley's user avatar
  • 7,718
4 votes
7 answers
741 views

Can an all-female species thrive to become divergent, despite their generic heritage from th...

Of course, in the more recent days, the aliens have the technology to genetically combine DNA from two female parents but getting that far in their evolution timeline would need to be important. …
1 vote
3 answers
115 views

Could a Planet become a moon post-destruction and the intact second planet continue to be in... [closed]

I'm trying to run a few ideas on an alien species that live on one planet and has a twin planet that is slightly smaller in size and had a small number of other beings living on it underground. They a …