Franco Banfi / Robust frond-aeolis (Dendronotus robustus) nudibranch on Kelp. Tasiilaq, East Greenland. April.
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Nick Upton / Painted topshell (Calliostoma zizyphinum) on Kelp frond in rockpool on low shore. Near Falmouth, Cornwall, England, UK. September.
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Alex Mustard / A view through Kelp forest (Laminaria hyperborea) with Common sea urchins (Echinus esculentus) grazing on the algae, Farne Islands, Northumberland, UK, North Sea, August
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Alex Mustard / A huge, seasonal gathering of Hooded nudibranchs (Melibe leonina) on Bull kelp (Nereocystis luetkeana) in a sheltered bay, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte St...
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Alex Mustard / A huge, seasonal gathering of Hooded nudibranchs (Melibe leonina) on Bull kelp (Nereocystis luetkeana) in a sheltered bay, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte St...
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Russell Laman / Giant spined star (Pisaster giganteus) on a rock alongside Pacific purple sea urchins (Strongylocentrotus purpuratus) underneath a Giant kelp (Macrocystis pyrifera) forest off the coast of Monterey, C...
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Russell Laman / Giant spined star (Pisaster giganteus) resting underneath a matt of Giant kelp (Macrocystis pyrifera) which is moving back and forth in the strong current, Monterey, California, USA, Pacific Ocean.
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Russell Laman / Pacific purple sea urchins (Strongylocentrotus purpuratus) feeding on Giant kelp (Macrocystis pyrifera) on seabed, Monterey, California, USA, Pacific Ocean.
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Tui De Roy / Panamic cushion seastar (Pentaceraster cumingi) with Gulfweed (Sargassaceae) on sea floor. Galapagos Islands, Ecuador. Pacific Ocean.
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Tui De Roy / Red sun star (Asterias cumingii) and Chocolate chip seastar (Nidorellia armata) amongst Gulfweed (Sargassaceae). Galapagos Islands, Ecuador. Pacific Ocean.
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Shane Gross / Sunflower seastar (Pycnopodia helianthoides), juvenile, feeding on algae growing on kelp (Laminariales), Prince William Sound, Alaska, USA, Pacific Ocean.
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Franco Banfi / Sea star (Odontaster validus) on Ribbon kelp (Durvillaea antarctica), Antarctic Peninsula, Antarctica, Southern Ocean.