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Platypus
  • Member for 7 years, 9 months
  • Last seen more than 7 years ago
21 votes
21 answers
5k views

Is it possible to have a habitable planet unsuitable for agriculture?

11 votes
3 answers
574 views

Could my creature's reproductive system work?

10 votes
3 answers
1k views

Creating realistic world - star cluster?

5 votes
4 answers
371 views

Is Earth-like habitable planet with erratic climate possible?

3 votes
0 answers
177 views

Human crew reaction to alien fan [closed]

3 votes
4 answers
613 views

Would society be different if humans used Haplodiploid-like sex-determination system? [closed]

2 votes
3 answers
2k views

How would gender roles differ if men are several times stronger than women? [closed]

2 votes
2 answers
232 views

Economic effects of Earth island being pariah state for more then a half century?

1 vote
2 answers
156 views

Would the humans ban the immigration of the colonial hobbit? [closed]

1 vote
2 answers
281 views

How to design Hobbit to colonize extreme planet?

0 votes
1 answer
357 views

What is safest distance for a dormant black hole? [closed]