http://www.smbc-comics.com/comic/biology-3
Alt text
The explanation of the Fermi Paradox is no beings who practice internal fertilization are to be invited to the galactic party.
Bonus panel
http://www.smbc-comics.com/comic/biology-3
The explanation of the Fermi Paradox is no beings who practice internal fertilization are to be invited to the galactic party.
Humans will shag anything that moves. And if it doesn’t move, they kick it until it moves and then shag it. It’s perfectly plausible to assume that at least some aliens will be similar.