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
The Traveller (poem) his Tory suspicion of commerce. Readers of all ages soon began to discover "The Traveller"’s merits. The 17-year-old Charles James Fox admired the poem; a few years later the even younger William Wordsworth read "The Traveller", and was influenced by it when he wrote his earliest surviving poem, "Lines Written as a School Exercise". The poem's critical reception continued high, though it often suffered by comparison with his "The Deserted Village". The bibliographer Egerton Brydges preferred "The Traveller": The sentiments are always interesting, generally just, and often new; the imagery is elegant, picturesque, and occasionally sublime; the language is nervous,