A dandan or dendan is a mythical sea creature from The Book of One Thousand and One Nights (or Arabian Nights) appearing in the tale "Abdullah the Fisherman and Abdullah the Merman", where a merman describes the dandan as the largest and fiercest fish, capable of swallowing large animals in a single mouthful.
Its bulk is greater than that of any beast of the land, and were it to meet a camel or an elephant, it would swallow it at one mouthful.'
"'[1]In John Payne's translation of the tale, a footnote adds a conjecture that the creature "appears to be a fabulous monster, partaking of the attributes of the shark and the cachalot or sperm-whale"[1]: 345 while Richard Burton's translation likewise describes it as "a sun-fish or some such well-fanged monster of the deep".
[2] A dandan was depicted on a Magic: The Gathering card, from the game's Arabian Nights expansion set.
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