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Comb Jelly

Comb Jellies belong to the family Ctenophora. They may look like jellyfish (cnidarians) but they are not. These marine invertebrates dwell in waters all around the world. This creature is very versatile. They can be found swimming near the coast or mid-ocean, sometimes on the surface or down deep. The Comb Jelly has about 150 different species all ranging in size. They will either be as small as a few millimeters or as large as 5ft. This species has an egg-shaped body that’s soft and gelatin-like with a pair of retractable tentacles bordered with tentilla (little tentacles) and covered with colloblast (sticky cells that help them catch their prey). The Comb Jellies main way of locomotion is by using cilia (hair-like organelles). They are the largest non-colonial species that uses cilia. Most species have about 8 comb rows (referring to the cilia) that run the length of their body. On top of that is where they have what is called “ctenes” (organelles that are covered in strong cilia and are used for locomotion). You are probably wondering how they get the beautiful colors that look like they are moving. Light will refract off comb rows and produce an iridescent color.


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