The lead story from today's Science Times might break much new scientific ground, but for the horror movie fans out there, the opening anecdote is hard to beat. It features renowned entomologist Louis Sorkin and a jar of bedbugs, the parasites that are currently exploding in cities from New York to London. Continue if you dare: "Mr. Sorkin pushed up his shirt sleeve and pressed the mesh end of the jar against the inside of his right arm. Roused to a frenzy by the twin cues of heat and carbon dioxide the insects scrambled toward the lid, thrust out their stylets and began to feed." The rest of the story details a bevy of bloodsucking animals from fleas to finches. Yes, there are vampire finches.