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 wrote in his verdict, ""Gotham" took a break after its Jerome arc and returned with a fun installment focusing on the official birth of Edward Nygma's Riddler persona - a tale that smartly used the underutilized Lucius as Edward's foil." Nick Hogan of TV Overmind gave the episode a 4 star rating out of 5, writing "Overall, this premiere episode was tight, focused, and immediately addressed some of the cliff-hangers from the 'winter finale' in January. More than anything, it has sparked my curiosity about what's to come, but all told it was wonderful having "Gotham" back on my screen."