"You need to see this photo, Drudge Report and Gawker," The Toronto Star tweeted today. The photo in question is of the ugliest mouse imaginable—veiny and bald and resembling an impossibly mutated monster's scrotum—with a tuft of coarse black hair growing from the back of its neck. The hair, the Star writes, is the product of revolutionary "bioengineered hair follicles" created by stem-cell researchers in Japan.