Whoa! Round up the batteries and the canned good Doris, and don’t forget to get the kids down into the underground bunker, as scientists now seem to think that creatures from outer space taking the form of “tiny microbes” could be all up in our business RIGHT NOW without us even knowing it.

According to Paul Davies, a physicist at Arizona State — home to America’s twattiest student body FYI — the dastardly aliens are just lurking creepily like Mel Gibson at a sorority house kegger. Or something.

Reports the AP:

Davies said the variant life forms , most likely tiny microbes , could still be hanging around “right under or noses , or even in our noses.”

“How do we know all life on earth descended from a single origin?” he told a conference at London’s prestigious Royal Society, which serves as Britain’s academy of sciences. “We’ve just scratched the surface of the microbial world.”

The idea that alien micro-organisms could be hiding out here on earth has been discussed for a while, according to Jill Tarter, the director of the U.S. SETI project, which listens for signals from civilizations based around distant stars.

She said several of the scientists involved in the project were interested in pursuing the notion, which Davies earlier laid out in a 2007 article published in Scientific American in which he asked: “Are aliens among us?”

So far, there’s no answer. And ever finding one would be fraught with difficulties, as Davies himself acknowledged.

Somebody round up Will Smith and Bruce Willis to save us from the microaliens!!!