Teeth and Jaw: The mouth is short, forming a nearly transverse line, and is surrounded by enlarged, fleshy, suctorial lips. Marks made by Cookiecutter sharks have been found on a wide variety of marine mammals and fishes, as well as undersea cables, rubber sonar domes on nuclear submarines, and even human bodies! Females range from 1.2-1.4 feet with a maximum greater than 1.6 feet.Ĭurrent Rare Mythical Sightings: The name “Cookiecutter shark” refers to its feeding habit of extracting round plugs out of larger animals, just like you would imagine using a cookie cutter. The maximum male is greater than 1.3 feet. There are other sharks in this family that behave similar.Īverage Size and Length: Mature male Cookiecutter sharks are between 1-1.2 feet in length on average. The name “Cookiecutter shark” refers to its feeding habit of extracting round plugs out of larger animals, just like you would imagine using a cookie cutter. It is medium to dark grey-brown, with light-emitting, bioluminescent, photophores covering its underside except for a dark “collar” around its throat and gill slits. Reaching only 12.5–20 inches in length, the Cookiecutter shark has a long, cylindrical body with a short, blunt snout, large eyes, two tiny spineless dorsal fins, and a large caudal fin. It is a poor swimmer that migrates vertically up to 1.9 miles every day, approaching the surface at dusk and descending with the dawn. The Cookiecutter shark can be found in warm, oceanic waters worldwide, particularly near islands, and has been recorded as deep as 2.7 miles. The Cookiecutter shark ( Isistius brasiliensis), or the Cigar shark, is a species belonging to the order of Dogfish sharks in the family Dalatiidae ( Kitefin sharks).
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