An hour and a half later, my tray was brought up by a disquieting clone of Mrs.

WSJ: Tatiana de Rosnay on Horrible Experiences in Upscale Hotels | Traveler's Tale

Scientists have determined that the half-life of DNA is 521 years, effectively ruling out any hopes of creating a clone army of pretty much anything beyond 6.8 million years ago.

ENGADGET: Alt-week 10.13.12: is the Universe a simulation, cloning dinosaurs and singing mice