A Wyvern’s body is different from the body of a young girl’s in several major respects. First, it has wings, which most young girls do not (there are exceptions). Second, it has a very long, thick tail, which some young girls may have, but those who find themselves so lucky keep them well hidden. Let us just say, there is a reason some ladies wore bustles in times gone by! Third, it weighs about as much as a tugboat carrying several horses and at least one boulder. There are girls who weigh that much, but as a rule, they are likely to be frost giants. Do not trouble such folk with asking after the time or why their shoes do not fit so well.
— Catherynne M. Valente, The Girl Who Fell Beneath Fairyland and Led the Revels There, p. 57