Georgette Douwma / Kaleidoscopic image of Sea apple (Pseudocolochirus violaceus). Komodo National Park, Indonesia.
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Nick Hawkins / Orange-footed sea cucumber (Cucumaria frondosa) tentacles, Bay of Fundy, New Brunswick, Canada, July.
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Sue Daly / Sea cucumber (Cucumaria frondosa), Trondheimsfjord, Norway, July.
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Linda Pitkin / Sea cucumber (Pseudocolochirus violaceus) Rinca, Komodo National Park, Indonesia.
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Linda Pitkin / Sea cucumber / Sea apple (Pseudocolochirus violaceus) Rinca, Komodo National Park, Indonesia.
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Georgette Douwma / Sea apple (Pseudocolochirus violaceus) Komodo National Park, Indonesia.
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Georgette Douwma / Sea apple (Pseudocolochirus violaceus) Komodo National Park, Indonesia.
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Franco Banfi / Orange sea cucumber (Cucumaria miniata) Little Strytan dive site, Eyjafjordur nearby to Akureyri, northern Iceland, North Atlantic Ocean.
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Georgette Douwma / Sea apple (Pseudocolochirus violaceus) on coral reef. It feeds by filtering the water column with its tentacular crown, successively bringing each arm into its mouth to deliver food particles. Komod...
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Scott Leslie / Green Sea Urchin (Strongylocentrotus droebachiensis) barren with Orange-footed Sea Cucumber (Cucumaria frondosa), Passamaquoddy Bay, Maine
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Franco Banfi / Orange sea cucumber (Cucumaria miniata) and anemone, (Metridium senile) Vancouver Island, British Columbia, Canada, Pacific Ocean
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Juergen Freund / Sea apple (Pseudocolochirus violaceus) feeding, Komodo National Park, Indonesia.