Alex Mustard / Lion's mane jellyfish (Cyanea capillata) with feeding tentacles spread swimming in the sun in shallow water. Gulen, Norway. North East Atlantic Ocean.
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Luis Quinta / Moon jellyfish (Aurelia aurita) near the surface, Santa Maria Island, Azores, September.
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SCOTLAND: The Big Picture / Mauve stinger (Pelagia noctiluca) at the entrance of a cave, Sula Sgeir, Outer Hebrides / Western Isles, Scotland, July.
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Suzi Eszterhas / Black sea nettle (Chrysaora achlyos) captive in Monterey Bay Aquarium, California, USA, October.
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Suzi Eszterhas / Purple-striped jellyfish (Chrysaora colorata) captive, USA, January.
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Shane Gross / Jellyfish, probably a purple stinger (Pelagia noctiluca) at night in the Sargasso Sea, Atlantic Ocean.