How the Snake Lost Its Legs the butterfly, the snake, and the cheetah. Each consists of three to eight sections named in the style of Rudyard Kipling's "Just So Stories", with titles like "How the butterfly got its spots" or "How the snake elongated its body", though a couple of sections use "Why?" rather than "How?", as in "Why the fly twirls his penis" (it rotates during embryonic development under the control of different genes). In these chapters, Held explains the mechanics of evolutionary developmental biology, complete with accounts of what genes such as hox, hedgehog, and engrailed do to shape bodies. The third part is
Leopard of the Central Provinces failed to intimidate the leopard, even firing in the air had no effect. The shots got the attention of the villagers, but the hunter called at them to clear the area. After a few hours, the hunter fell asleep at 1:00, and upon waking, found the leopard clawing at the foot of the tree. The leopard left after a few moments, but returned three hours later to finish its meal. By sunrise, all that remained of the boy’s body were hands, feet and a few bones. The hunter attempted to track down the leopard in case it was still in