Stephen Jay Gould has a wide range of interests, and for many years he has shared his enthusiasms in the pages of Natural History and the New York Review of Books, among other journals. His passions include baseball, the puzzles of evolutionary theory, and the game of scholarly detection as it applies to questions such as, "What became of dinosaurs, anyway?". He answers entertainingly, but never talks down to his readers. Gould is one of modern natural science's great popularizers, but he shuns the temptation to make the giant reptiles of prehistory the Smurfs of the 1990s, in the manner of a certain purple dinosaur. The 35 pieces gathered here make for fine browsing, full of sideways glances and digressions that eventually make sense.