All right, we admit it: we don't actually know if this gal is a nerd or not. Granted, she's got the chemical compound for serotonin inked alluringly onto her hip and she seems to be in scrubs, both of which could at least imply a capacity for academic excellence. But it's not conclusive proof of geekness. For all we know, she could have just been a clubkid before ditching her pacifiers and whistles and getting into bio-waste removal. But whatever. We're gonna assume that she and everyone else on Carl Zimmer's Science Tattoo Emporium is a total dweeb -- so committed to their areas of expertise that they've had them permanently etched into their flesh -- because goddamnit, that. Is. Hot.

And that is what we are here for, right?