The 10 Most Unbelievable Alien Races in Science Fiction

Chances are when we meet actual extraterrestrials, they'll be so different, our minds will be blown. But science fiction has to make do, which is why we get so many humans with wacky foreheads. Sometimes, though, we meet an alien race that could never have evolved, no matter what. Here are the 10 most unbelievable… »9/06/13 1:38pm9/06/13 1:38pm