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

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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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