Cambridge, MA: Candlewick Press, 2006. Hardcover first edition - An informative and striking pop-up book by two modern masters of the art. Includes more than 35 pop-ups of pre-historic sea-going animals - sharks, whales and more - including some, like the horseshoe crab, which still survive today. Has 6 large double page spreads and smaller booklets on the corners and edges of every page. In the original plastic bag, with the printed cover sheet. ISBN: 0-76362229.