Franco Banfi / Octopus, (Octopus vulgaris), splashing a cloud of ink and swim away with Bearded fireworm, (Hermodice carunculata) who want to eat a small octopus, top of the wall of Bisevo, Vis Island, Croatia, Adri...

Claudio Contreras / Californian sea lion (Zalophus californianus) swimming in Southern sea palm (Eisenia arborea) and Giant Kelp (Macrocystis pyrifera) forest, San Benitos Islands, Baja California Pacific Islands Biosphe...

Paul Williams / Kinabalu Giant red leech (Mimobdella buettikoferi) feeding on Kinabalu Giant earthworm (Pheretima darnleiensis), Mount Kinabalu, Borneo.

Georgette Douwma / Nudibranch (Chromodoris willani) with a scale worm. Lembeh Strait, North Sulawesi, Indonesia.

Brent Stephenson / New Zealand peripatus / Velvet worm (Peripatoides novaezealandiae) spitting out a sticky trap at its prey, Kahuranaki, Hawkes Bay, New Zealand, September.

Claudio Contreras / Social feather duster worm (Bispira brunnea) Cancun national Park, Caribbean Sea, Mexico, July

Paul Hobson / Glowworm (Lampyris noctiluca) at night, Cambridgeshire, England, UK, August.

Brandon Cole / Bluestriped fangblenny (Plagiotremus rhynorhynchus) in hole, Indonesia, tropical Pacific Ocean.

MYN / Gil Wizen / Huge terrestrial flatworm (Bipalium kewense), Mindo, Ecuador, March. meetyourneighbours.net project

Chris Mattison / Barred tiger salamander (Ambystoma tigrinum mavortium)eating earth worm, captive occurs in South and Central USA.

Mark MacEwen / Mopane moth (Imbrasia belina) eggs hatching, Tuli Block, Botswana

Franco Banfi / Close up detail of soft coral (Dendronephthya sp.) Maldives, Indian Ocean

Franco Banfi / Detail of magnificent Sea anemone (Heteractis magnifica) Maldives, Indian Ocean

Alex Mustard / Synchronous spawning of a mountainous star coral (Montastraea faveolata) at night. East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Linda Pitkin / 2020VISION / Tube worms (Bispira volutacornis) living between rocks covered in Crustose coralline (Corallinaceae) and red algae (Rhodophyceae), Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Sunset cup coral / Yellow cave coral (Leptopsammia pruvoti), on sponge covered rock face, Lundy Island Marine Conservation Zone, Devon, England, UK, May

Alex Hyde / Velvet Worm (Peripatus novaezealandiae) silhouetted against a leaf, known as 'living fossils', having remained the same for approximately 570 million years, New Zealand, Captive

Alex Hyde / Velvet Worm (Peripatus novaezealandiae) known as 'living fossils', having remained the same for approximately 570 million years, New Zealand, Captive

Brandon Cole / Surreal view of the jungle above gorgonian sea fans (Melithaea sp.) in a shallow current-swept passage. Indonesia, tropical Indo-Pacific Ocean.

Brandon Cole / Leather Coral (Sinularia flexibilis) above soft corals (Dendronephthya sp.). Fiji, tropical Pacific Ocean.

David Tipling / 2020VISION / Bar-tailed Godwit (Limosa lapponica) foraging for tidal-flat worm. Norfolk, January. Sequence 2 of 2.

David Tipling / 2020VISION / Bar-tailed Godwit (Limosa lapponica) foraging for tidal-flat worm. Norfolk, January. Sequence 1 of 2.

Andy Sands / Glow Worm (Lampyris noctiluca) female glowing after dark. Hertfordshire, England, UK, July.

Andy Sands / Glow Worm (Lampyris noctiluca) female glowing after dark. Hertfordshire, England, Uk, July.

Alex Mustard / Planktonic sea walnut ctenophore (Mnemiopsis mccradyi) in open water, Seven Mile Beach, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Laurie Campbell / Slow worm (Anguis fragilis) female with newborn young on rock face, controlled conditions, Berwickshire, Scotland, July

Alex Mustard / A diver exploring a coral reef with formation of brown tube sponges (Agelas conifera) red rope sponges (Amphimedon compressa) and deepwater sea fans (Iciligorgia nodulifera) East End, Grand Cayman, Ca...

Alex Mustard / Secretary blenny (Acanthemblemaria maria) making a home in a deserved worm tube of a great star coral (Montastraea cavernosa), East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Se...

David Shale / Solenosmilia sp and eunicid polychaete and bamboo coral. Collected from coral sea mount near Dragon vent field on SW Indian Ridge, Indian Ocean.

Alex Hyde / Slow worm (Anguis fragilis) photographed on a white background, Midi-Pyrenees, France, August.

Jeff Rotman / Gorgonian Seafan Coral (Gorgonacea) polyps open to feed at night. South China Sea, Sipadan Island, Borneo.

Andrew Parkinson / Dunlin (Calidris alpina) adult trying to pull a worm out of the wet sand, September, Shetland Islands, UK, September.

Andy Rouse / Little Owl (Athene noctua) adult with a worm in its beak. Wales, UK, June. (non-ex).

Andy Rouse / Little Owl (Athene noctua) adult pulling a worm from the ground. Wales, UK, June. (non-ex).

Andy Rouse / Little Owl (Athene noctua) adult pulling a worm from the ground. Wales, UK, June. (non-ex).

Andy Rouse / Little Owl (Athene noctua) adult eating a worm. Wales, UK, June. (non-ex).

Andy Rouse / Little Owl (Athene noctua) taking off with a worm in its beak. Wales, UK, June.

Simon Colmer / Slow-worm (Anguis fragilis) on white background Sussex, UK

David Shale / Deepsea benthic Sea cucumber (Peniagone sp) with commensal polynoid polychaete, from mid atlantic ridge, depth approx 2600m, June 2010

Andy Sands / Glow worm (Lampyris noctiluca) climbing on stem of grass, with tail emitting bioluminescence, England, UK, July

Colin Varndell / Slow worm (Anguis fragilis) Powerstock Common, Dorset, April

Paul Harcourt Davies / Glow worm (Lampyris noctiluca) female glowing, Italy.

David Shale / Enteropneust worm / Acorn worm (Allapagus isidis) from the North Atlantic Ocean. Southern White variety. Feeds on sea floor sediment and has been observed swimming, new species, first recorded in J...