Nigel Cattlin / Insect / invertebrate house / bug hotel with various refuge options for hiding / over-wintering, WWT, West Sussex, UK, July.
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Juergen Freund / Blue-lined fangblenny (Plagiotremus rhinorhynchos) hiding in a plastic container, they usually hide in deserted worm tubes or other small holes, North Sulawesi, Indonesia.
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Nick Turner / Man lifting fluorescent light tubes at a recycling centre, Stroud, Gloucestershire, UK, February 2008.
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Alex Mustard / Yellow tube sponge (Aplysina fistularis) top view of tubes with water swirling around them, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.
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David Perpinan / Oesophagostomy tube placed in a captive Red-footed tortoise (Chelonoidis carbonaria). These tubes are placed for animals that refuse eating by themselves. Small repro only.
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Nick Upton / Recently completed Leafcutter / Rose-cutter bee (Megachile willughbiella) and Potter wasp (Ancistrocerus sp.) nests in Bamboo tubes in an insect hotel, Wiltshire, UK, July.
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Nick Upton / Mosquito larvae (Culicidae), filter feeding in a garden pond with the breathing tubes at the ends of their abdomens reaching the surface, Wiltshire, UK, June.
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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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Ashley Cooper / The Isle of Eigg off Scotland's west coast, shows the way forward to a renewable future. in 1997 the island was purchased from its fuedal landlord by the Eigg Heritage Trust, a partnership between the...
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Ashley Cooper / The Isle of Eigg off Scotland's west coast, shows the way forward to a renewable future. in 1997 the island was purchased from its fuedal landlord by the Eigg Heritage Trust, a partnership between the...
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David Fleetham / Divers with torches silhouetted at the entrance to First Cathedral cave off the Island of Lanai, Hawaii. August 2007. Model released
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Paul Williams / North American porcupine (Erethizon dorsatum) with a maple syrup tapping tube. These tubes are used to carry sap to large tanks. Porcupines have learned to bite the tubes so that they can drink the li...