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This is a staple of sci-fi (probably a trope): some mundane thing is declared to be "only found on Earth". I think some foods have been mentioned before as being "unique to Earth as far as we know in the galaxy", but I can't remember what.

Has that ever been mentioned, or am I partially remembering wrong?

EDIT: I'm not asking for a list. A list of all these would definitely be a wrong thing to ask. Not a list. Just was that used and an example.

closed as too broad by Valorum, AncientSwordRage Jan 22 '14 at 20:51

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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Humans? They might be on other planets now, but they all came from Earth originally.

  • 2
    Nice try :) Even that is a bit thrown off, as a lot of old TOS episodes had something like "very close to human" aliens. – MPelletier Jan 22 '14 at 20:59

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