There were dragons when I was a boy. There were great, grim, sky dragons that nested on the cliff tops like gigantic scary birds. Little, brown, scuttly dragons that hunted down the mice and rats in well-organized packs. Preposterously huge Sea Dragons that were twenty times as big as the Big Blue Whale and who killed for the fun of it. You will have to take my word for it, for the dragons are disappearing so fast they may soon become extinct.
— How To Train Your Dragon
by Cressida Cowell