Andrew Parkinson / Dunlin (Calidris alpina) adult trying to pull a worm out of the wet sand, September, Shetland Islands, UK, September.
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Pascal Kobeh / Bobbit worm (Eunice aphroditois) in sand on sea floor, at night. Flores Sea, Indonesia.
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Pascal Kobeh / Henshaw's snake eel (Brachysomophis henshawi) burried in the sand, Sulu sea, Philippines
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Pascal Kobeh / Henshaw's snake eel (Brachysomophis henshawi) buried in the sand, Sulu sea, Philippines
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Pascal Kobeh / Black finned snake eel (Ophichthus melanochir) buried in the sand, Sulu Sea, Philippines
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Nick Upton / Honeycomb worm (Sabellaria alveolata) reef. Clustered tubes built of sand grains attached to rocks, exposed at low tide. Duckpool Beach, Cornwall, Devon, UK. September 2018.
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David Fleetham / Freckled snake eel (Callechelys lutea) head poking out of sand with rest of body buried. Hawaii.
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Tony Wu / Snake eel (Ophisurus macrorhynchos) waiting to ambush prey, head poking out of sand. Sue, Wakayama Prefecture, Kansai, Honshu, Japan. February.
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Konrad Wothe / Lugworm / Sandworm (Arenicola marina) holes and casts on mudflats, on the coast of the North Sea, Germany, June.
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Franco Banfi / Crocodile snake eel (Brachysomophis crocodilinus) hiding in sand, Pura Vida House Reef, Dumaguete, East Negros Island, Central Visayas, Philippines, Pacific Ocean.
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Luis Quinta / Mint-sauce worms (Symsagittifera roscoffensis / Convoluta roscoffensis) sunbathing on sand at low tide to allow the symbiotic algae to photosynthesise. Costa de Caparica beach, Portugal. April 2017.
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Luis Quinta / Patterns made in sand by Mint-sauce worms (Symsagittifera roscoffensis / Convoluta roscoffensis) sunbathing at low tide to allow the symbiotic algae to photosynthesise with bivalve shell . Costa de Ca...
