"What if I were to tell you that Angry Birds had been surpassed in the App Store - by a game that involves solving algebra equations? Because that's what DragonBox did."
A volume edited by Mircea Pitici, including such contributions as "why Freeman Dyson thinks some mathematicians are birds while others are frogs; why Keith Devlin believes there's more to mathematics than proof; what Nick Paumgarten has to say about the timing patterns of New York City's traffic lights (and why jaywalking is the most mathematically efficient way to cross Sixty-sixth Street); what Samuel Arbesman can tell us about the epidemiology of the undead in zombie flicks."
Pigeons "were taught to order 35 different sets of images, all of which displayed one, two, or three items. Then, the setup changed: values up to nine were introduced. The pigeons were then shown a pair of two familiar numbers (such as two and three), one familiar and one unfamiliar number (such as one and seven), or two unfamiliar numbers (such as five and eight). "