Also know as the cigar shark for that one time a sailor mistook it for a cigar and only realized their mistake after trying to light it up—kidding of course— Isistius brasiliensis is shark of the family Dalatiidae. The genus name, Isistius, is based on Isis. No, not the terrorist group, but after Isis, the Egyptian goddess of light.

https://thewildlife.blog/2019/08/05/sunday-fish-sketch-the-cookiecutter-shark/

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