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
How the Riddler Got His Name a professor in a lab and holds him at gunpoint. He then makes him questions about riddles but the professor fails at every question he makes. Nygma then ties him and reveals he has killed people before and that while he knows who is he, he does not know how to be himself. When the professor fails again at the riddles, Nygma ignites the lab with gas tanks and leaves, killing the professor. In the Court, Kathryn (Leslie Hendrix) ends Five's (David Mazouz) brainwashing practice, and calls Frank (James Remar) to ensure Gordon's (Ben McKenzie) cooperation with the Court. In