Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning mouth of Tomato Grouper (Cephalopholis sonnerati), Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning mouth of Tomato Grouper (Cephalopholis sonnerati), Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning female Stocky Anthias (Pseudanthias hypselosoma), Tulamben, Bali, Indonesia

Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning Yellow-edged Moray (Gymnothorax flavimarginatus), Tulamben, Bali, Indonesia

Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning Honeycomb Moray Eel (Gymnothorax favagineus), Tulamben, Bali, Indonesia

Gary Bell/ Oceanwide / Scarlet Cleaner Shrimp (Lysmata amboinensis) cleaning mouth of Goldbelly Cardinalfish (Apogon apogonides), Tulamben, Bali, Indonesia

Alex Mustard / Commensal emperor shrimp (Periclimenes imperator) moves across the colourful red patterned surface of its host Candycane sea cucumber (Thelenota rubralineata). Misool, Raja Ampat, West Papua, Indonesi...

Alex Mustard / Reef lizardifsh (Synodus variegatus) at a cleaning station, being cleaned by Holthuis anemone shrimps (Ancylomenes holthuisi). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Shane Gross / Bubble coral shrimp (Vir philippinensis) on Bubble coral (Plerogyra sp). Anilao, Philippines.

Juergen Freund / Moral eels, Urchins, Cuttlefish, Shrimp and other marine life living within a discarded tyre and fishing net under a ships' harbour, Maluku, Indonesia. November.

David Fleetham / Crinoid shrimp (Periclimenes amboinensis) on matching Feather star (Comanthus bennetti) Philippines.

David Fleetham / Bubble coral shrimp (Vir philippinensis) on Bubble coral (Plerogyra sp), Philippines.

David Fleetham / Porcelain crab (Porcellanella picta) hiding between the blades of the Seapen (Pteroeides sp). Komodo, Indonesia.

Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...

Nick Upton / Common prawns (Palaemon serratus) and a Rock goby (Gobius paganellus) feeding on a dead Montagu's crab (Xantho hydrophilus) in a rockpool, Cornwall, England, UK, September.

Nick Upton / Rock goby (Gobius paganellus) stealing food from a scavenging Common prawn (Palaemon serratus) in a rockpool, Cornwall, England, UK, September.

Jan Hamrsky / Brine shrimp or monkey shrimp (Artemia salina) female. Controlled conditions.

Alex Mustard / Spaghetti garden eels (Gorgasia maculata) stretching up out of their burrows on a rubble slope, with Mysiid shrimp swimming around their bodies near the seabed. Dumaguete, Dauin, Negros, Philippines....

Constantinos Petrinos / Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) hitchhiking on large t-bar nudibranch (Ceratosoma trilobatum) The shrimp gains food source and protection on the toxic seaslug. Bitung, North...

Jeff Rotman / Symbiotic emperor shrimp (Periclimenes imperator / Zenopontonia rex) living in the gills of a spanish nudibranch (Hexabranchus sanguineus) Red Sea, Egypt

Alex Mustard,Alex Mustard / A portrait of a small Candy stripe shrimp (Lebbeus grandimanus) in front of its host pink anemone (out of focus because of the magnification). Browning Wall, Browning Pass, Port Hardy, Vancouver Islan...

Alex Mustard / 2020VISION / Pink shrimp (Pandalus montagui), Loch Carron, Ross and Cromarty, Scotland, UK, April

Solvin Zankl / Fairy Shrimp (Eubranchipus grubii) eggs Digital focus stacking image

Solvin Zankl / GEOMAR / Polar shrimp (Lebbeus polaris) on live Lophelia (Lophelia pertusa) from Trondheimfjord, North Atlantic Ocean, Norway. Controlled conditions. Photo taken in cooperation with GEOMAR coldwater coral res...

David Shale / Male and Female glass shrimps on Glass sponge (Hexactinellida) from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

Alex Mustard / Pederson cleaner shrimp (Periclimenes pedersoni) cleaning the eye of a Nassau grouper (Epinephelus striatus), Bloody Bay Wall, Little Cayman, Cayman Islands. British West Indies, Caribbean Sea.

David Shale / Deepsea Orange ghost lobster (Decopoda, Thalassinidae) from coral seamount in the Indian Ocean, December 2011

Alex Mustard / 2020VISION / Pair of Skeleton shrimps (Caprella linearis) male on left, living on lightbulb tunicates. Bard Cave, Bressay, Shetland Islands, Scotland, UK, June

Alex Mustard / 2020VISION / Skeleton shrimp (Caprella linearis) living within the polyps of Dead man's fingers soft coral. Bard Cave, Bressay, Shetland Islands, Scotland, UK, June

Piotr Naskrecki / Eastern Fairy Shrimp (Eubranchipus vernalis) in vernal pond, Estabrook Woods, Massachusetts

Juergen Freund / Diver observing Coral razor / Shrimp fish (Aeoliscus strigatus) camouflaged amongst whip coral on coral reef, North Sulawesi, Indonesia. Model released.

Juergen Freund / Shoal of schooling Coral razor / Shrimp fish (Aeoliscus strigatus) with diver on hard coral reef, North Sulawesi, Indonesia.

Juergen Freund / Coleman shrimp (Periclimenes colemani) on a Fire urchin (Asthenosoma varium) Moluccas Islands, Indonesia.

Birgitte Wilms / Mantis Shrimp (Odontodactylus scyllarus), Solomon Islands

Juergen Freund / Imperial / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) on an Eyed / Leopard sea cucumber (Bohadschia argus). Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Imperial / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) on an Eyed / Leopard sea cucumber (Bohadschia argus). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Imperial / Emperor shrimps (Periclimenes imperator / Zenopontonia rex) on a sea cucumber. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Blue starfish shrimp (Periclimenes soror) on starfish, Kimbe Bay, Papua New Guinea, Indo-Pacific.

Georgette Douwma / White banded/ Scarlet cleaner shrimp (Lysmata amboinensis) on Coral hind (Cephalopholis miniata) Rinca, Komodo National Park, Indonesia, October

David Woodfall / Young woman fishing for shrimp fry, looking in net to see the catch, Ganges Delta, Bangladesh, November 2008

David Woodfall / Large numbers of children fishing for shrimp fry on coastal margin land damaged by typhoon Sidr in November 2007, Sundarbans, Bangladesh, October 2008

Wild Wonders of Europe / Lundgren / Skeleton shrimp (Caprellidea sp) on a hydroid, Saltstraumen, Bod, Norway, October 2008

Wild Wonders of Europe / Banfi / Caramote prawn (Penaeus kerathurus) Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

David Shale / Eryonicus larva of Shrimp {Polycheles sp) from between 2710-2798m, Mid-Atlantic Ridge, North Atlantic Ocean

Wild Wonders of Europe / Lundgren / Montague / Pink shrimp (Pandalus montagui) close-up, Lofoten, Norway, November 2008

Tim Laman / Aerial view of river, mangrove forest and shrimp ponds in the Sarawak Mangrove Reserve area, Sarawak, Borneo, Malaysia, June 2006

Tim Laman / Shrimp fry fishing in the Sibsa River. Each fisherman, working from his own boat, has set a net to capture shrimp fry passing on the current as the tide rises and brings water in from the sea. Nolian...

Wild Wonders of Europe / Lundgren / Shrimp (Lebbeus polaris) eyeballing an Atlantic wolffish (Anarhichas lupus) Saltstraumen, Bod, Norway, October 2008 Wild Wonders kids book.

Solvin Zankl / Desert / Longtail tadpole shrimp {Triops longicaudatus}

Solvin Zankl / Close up of face, antennae and mouthparts of large male Peacock mantis shrimp (Odontodactylus scyllarus) Lembeh Straits, Sulawesi, Indonesia

Solvin Zankl / Close up of face and mouthparts of large male Peacock mantis shrimp (Odontodactylus scyllarus) Lembeh Straits, Sulawesi, Indonesia

David Shale / Eryonid shrimp {Polycheles sp} from the mid-Atlantic ridge, depth 2600m

Jeff Rotman / Emperor Shrimp (Periclimenes imperator / Zenopontonia rex) living inside gills of Spanish Dancer Nudibranch (Hexabranchus sanguineus). Egypt, Red Sea.

Chris Newbert / Black-rayed Shrimpgoby (Stonogobiops nematodes) with Shrimp guarding burrow, 80 feet deep, Papua New Guinea

Ingo Arndt / Antarctic Krill (Euphausia superba) with yellow algae in stomach, a small shrimp-like crustacean is the most important zooplankton in the Antarctic food web, Weddell Sea, Antarctica

Todd Pusser / Bottlenose dolphin {Tursiops truncatus} foraging around Shrimp trawler, South Carolina, USA

Kim Taylor / Brine shrimp {Artemia salina} hatched and hatching nauplius larvae

Kim Taylor / Brine shrimp {Artemia salina} male showing claspers

Fred Bavendam / Goby (Amblyeleotris sp) keeping watch while a Snapping Shrimp (Alpheus randalli) excavates their shared burrow, Bali, Indonesia

Chris Newbert / Scarlet Cleaner Shrimp (Lysmata amboinensis) pair cleaning a Moray Eel (Gymnothorax ocellatus) 80 feet deep, Solomon Islands

Flip Nicklin / Antarctic Krill (Euphausia superba) feeding on algae-covered ice, a small shrimp-like crustacean is the most important zooplankton in the Antarctic food web, Antarctica

Flip Nicklin / Antarctic Krill (Euphausia superba) a small shrimp-like crustacean is the most important zooplankton in the Antarctic food web, Antarctica

Flip Nicklin / Antarctic Krill (Euphausia superba) mass, Antarctica

Flip Nicklin / Antarctic Krill (Euphausia superba) crustacean, Antarctica

Flip Nicklin / Antarctic Krill (Euphausia superba) schooling underwater, this small shrimp-like crustacean is the most important zooplankton in the Antarctic food web, Antarctica

Flip Nicklin / Antarctic Krill (Euphausia superba) feeding on algae-covered ice, Antarctica

Flip Nicklin / Bearded Seal (Erignathus barbatus) male resting on ice floe with head dyed red from the high iron content of ocean mud in which he hunts for shrimp and clams, Svalbard, arctic Norway

Flip Nicklin / Antarctic Krill (Euphausia superba) group, a small shrimp-like crustacean is the most important zooplankton in the Antarctic food web, Antarctica

Fred Bavendam / Brown Snapping Shrimp (Alpheus armatus) on coral, Bonaire, Netherland Antilles, Caribbean

Fred Bavendam / Scarlet Cleaner Shrimp (Lysmata amboinensis) working on a Tomato Grouper (Cephalopholis sonnerati), Milne Bay, Papua New Guinea

Doug Perrine / Warty corallimorph oral disk {Rhodactis osculifera / Discosoma sanctithomae} Caribbean Sea NB shrimp with red (Non-ex).

Doug Perrine / Yellow edged moray eel {Gymnothorax flavimarginatus} having mouth cleaned by Humpback cleaner shrimp {Lysmata amboinensis} Sabah Borneo (Non-ex).

Doug Perrine / Nassau grouper {Epinephelus striatus} mouth being cleaned of parasites by clearner shrimp, Turks & Caicos, Caribbean Sea (Non-ex).

David Hall / Sea urchin shrimp on venemous urchin {Periclimenes colemani & Asthenosoma} Papua New Guinea

Juergen Freund / Banded coral (Cleaning) shrimp on coral, Caribbean Sea off Cuba.

Jeff Rotman / Symbiotic shrimp on basal disc of sea anemone, Red Sea

Pascal Kobeh / Coleman's bubble coral shrimp (Vir colemani) with its eggs in a bubble-coral (Plerogyra sinuoasa) where it is protected, New Caledonia, Pacific Ocean Completed Review

Alex Mustard / A larval mantis shrimp (Stomatopoda), copepods and more plankton aggregate at night, in open water. Anilao, Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Tropical West Pac...

Alex Mustard / Emperor shrimp (Zenopontonia rex) female rides on the back of a nudirbranch (Tambja morosa), while picking food from the seabed. Anilao, Batangas marine protected area, Luzon, Philippines. Verde Islan...

Alex Mustard / Pair of Emperor shrimp (Zenopontonia rex / Periclimenes imperator) female is the larger one, hitch a ride on a large nudibranch (Tambja luteolineata) and pick food from the seabed with their claws. Bi...

Georgette Douwma / Kaleidoscopic image of Hingebeak shrimp (Rhynchocinetes durbanensis). Bali, Indonesia.

Sergio Hanquet / Shrimp (Trachycaris restricta), close up. Tenerife, Canary Islands.

Sergio Hanquet / Shrimp (Trachycaris restricta), close up. Tenerife, Canary Islands.

Sergio Hanquet / Shrimp (Trachycaris restricta), close up. Tenerife, Canary Islands.

Sergio Hanquet / Red-backed cleaner shrimp (Lysmata grabhami) on sandy sea floor. Tenerife, Canary Islands.

Sergio Hanquet / Red-backed cleaner shrimp (Lysmata grabhami), view from above. Tenerife, Canary Islands.

Sergio Hanquet / Red-backed cleaner shrimp (Lysmata grabhami) head, close up. Tenerife, Canary Islands.

Sergio Hanquet / Red-backed cleaner shrimp (Lysmata grabhami). Tenerife, Canary Islands.

Sergio Hanquet / Red-backed cleaner shrimp (Lysmata grabhami). Tenerife, Canary Islands.

David Hall / Brooks urchin shrimp (Allopontonia brooki), commensal among the venomous spines of Variable sea urchin (Asthenosoma varium). On sea floor, Komodo, Indonesia.

David Hall / Yellow prawn-goby (Cryptocentrus cinctus) and Snapping shrimp (Alpheus sp). Mutualistic symbiosis with goby as watchdog and shrimp maintaining burrow. Komodo, Indonesia.

David Hall / Arcfin shrimpgoby (Amblyeleotris arcupinna) and Snapping shrimp (Alpheus sp), blind shrimp maintaining contact with goby via antenna. Mutualism with shrimp maintaining burrow and goby acting as lookou...

David Hall / Shrimpgoby (Amblyeleotris arcupinna). Pantar, Alor Archipelago, Indonesia.

David Hall / Soft coral ghostgoby (Pleurosicya boldinghi) swimming through Soft coral (Dendronephthya). Shrimp and benthic Comb-jellies (Ctenophora) present, all commensal. Pantar, Alor Archipelago, Indonesia.

David Hall / Banded tozeuma shrimp (Tozeuma armatum) on Black coral (Antipatharia). Komodo, Indonesia.