• Résultats pour
    • Commensalism
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Peruvian Tarantula (Pamphobeteus sp.) and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. The tara...
01616505
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. The tara...
Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
01613276
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
00573156
Tui De Roy / Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
00573153
Tui De Roy / Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
Humpback whale (Megaptera novaeangliae) adult female at rest. The tubercles on the whale's head are clearly visible, as are the barnacles (Coronula diadema), whale lice (Cyamus boopis), and hairs on t...
01563848
Tony Wu / Humpback whale (Megaptera novaeangliae) adult female at rest. The tubercles on the whale's head are clearly visible, as are the barnacles (Coronula diadema), whale lice (Cyamus boopis), and hairs on t...
Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
01515492
Franco Banfi / Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
Whale Shark (Rhincodon typus) and Golden Trevally (Gnathanodon speciosus) school, Cenderawasih Bay, West Papua, Indonesia
00556267
Pete Oxford / Whale Shark (Rhincodon typus) and Golden Trevally (Gnathanodon speciosus) school, Cenderawasih Bay, West Papua, Indonesia
Group of predators hunting together, in an example of 'Nuclear foraging'. The Moray eel (Gymnothorax javanicus) flushes out prey, and is followed by a Napolean wrasse (Cheilinus undulatus) and a Bluef...
01520129
Alex Mustard / Group of predators hunting together, in an example of 'Nuclear foraging'. The Moray eel (Gymnothorax javanicus) flushes out prey, and is followed by a Napolean wrasse (Cheilinus undulatus) and a Bluef...
Crested myna starlings (Arcidotheres cristatellus) sitting on domestic waterbuffaloes (Bubalus domesticus), Poyang Ho Lake, Jiangxi province, China
01511033
Staffan Widstrand / Wild Wonders of China / Crested myna starlings (Arcidotheres cristatellus) sitting on domestic waterbuffaloes (Bubalus domesticus), Poyang Ho Lake, Jiangxi province, China
Crested myna starlings (Arcidotheres cristatellus) sitting on domestic waterbuffaloes (Bubalus domesticus), Poyang Ho Lake, Jiangxi province, China
01511032
Staffan Widstrand / Wild Wonders of China / Crested myna starlings (Arcidotheres cristatellus) sitting on domestic waterbuffaloes (Bubalus domesticus), Poyang Ho Lake, Jiangxi province, China
Green turtle (Chelonia mydas) with two large remoras (Echeneis naucrates) attached to its carapace, at rest on artificial reef.  Mabul, Malaysia.
01509291
Georgette Douwma / Green turtle (Chelonia mydas) with two large remoras (Echeneis naucrates) attached to its carapace, at rest on artificial reef. Mabul, Malaysia.
Blackish cinclodes (Cinclode fuligineux) on beach with Southern Elephant-Seal (Mirounga leonina). This species feeds on dead skin of the seal. Falklands Islands.
01508063
Roland Seitre / Blackish cinclodes (Cinclode fuligineux) on beach with Southern Elephant-Seal (Mirounga leonina). This species feeds on dead skin of the seal. Falklands Islands.
Oceanic whitetip shark (Carcharhinus longimanus) accompanied by pilotfish (Naucrates ductor) as it cruises beneath the surface of the Red Sea, close to Little Brother Island. The Brothers Islands, Egy...
01502226
Alex Mustard / Oceanic whitetip shark (Carcharhinus longimanus) accompanied by pilotfish (Naucrates ductor) as it cruises beneath the surface of the Red Sea, close to Little Brother Island. The Brothers Islands, Egy...
Marsh deer (Blastocerus dichotomus) male with Cattle tyrant  (Machetornis rixosus) on back, Ibera Marshes, Corrientes Province, Argentina.
01495022
Gabriel Rojo / Marsh deer (Blastocerus dichotomus) male with Cattle tyrant (Machetornis rixosus) on back, Ibera Marshes, Corrientes Province, Argentina.
Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
01498507
Constantinos Petrinos / Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
Whale Shark (Rhincodon typus) eating with attendant Remoras (Remora remora), Philippines
00523265
Tim Fitzharris / Whale Shark (Rhincodon typus) eating with attendant Remoras (Remora remora), Philippines
Humpback Whale (Megaptera novaeangliae) group gulp feeding, Auke Bay, Juneau, Alaska
00517977
Flip Nicklin / Humpback Whale (Megaptera novaeangliae) group gulp feeding, Auke Bay, Juneau, Alaska
Oceanic White-tip Shark (Carcharhinus longimanus) with Pilot Fish (Naucrates ductor), Bahamas, Caribbean
00499772
Norbert Wu / Oceanic White-tip Shark (Carcharhinus longimanus) with Pilot Fish (Naucrates ductor), Bahamas, Caribbean
Deepsea benthic Sea cucumber (Peniagone sp) with commensal polynoid polychaete, from mid atlantic ridge, depth approx 2600m, June 2010
01312118
David Shale / Deepsea benthic Sea cucumber (Peniagone sp) with commensal polynoid polychaete, from mid atlantic ridge, depth approx 2600m, June 2010
Oceanic whitetip shark (Carcharhinus longimanus) with pilot fish (Naucrates ductor) Kona Coast, Hawaii, Central Pacific Ocean
01181870
Doug Perrine / Oceanic whitetip shark (Carcharhinus longimanus) with pilot fish (Naucrates ductor) Kona Coast, Hawaii, Central Pacific Ocean
Yellow wood sorrel {Oxalis dillenii} growing in bark of Mesquite tree, Texas, USA.
01125017
Rolf Nussbaumer / Yellow wood sorrel {Oxalis dillenii} growing in bark of Mesquite tree, Texas, USA.
Gulfweed crab (Planes minutus), epibiont on Loggerhead turtle (Caretta caretta). Tenerife, Canary Islands.
01634912
Sergio Hanquet / Gulfweed crab (Planes minutus), epibiont on Loggerhead turtle (Caretta caretta). Tenerife, Canary Islands.
Brooks urchin shrimp (Allopontonia brooki), commensal among the venomous spines of Variable sea urchin (Asthenosoma varium). On sea floor, Komodo, Indonesia.
01630289
David Hall / Brooks urchin shrimp (Allopontonia brooki), commensal among the venomous spines of Variable sea urchin (Asthenosoma varium). On sea floor, Komodo, Indonesia.
Mozambique ghostgoby (Pleurosicya mossambica) living commensally with Sea pen (Pennatulacea). Komodo, Indonesia; November, 2006
01630288
David Hall / Mozambique ghostgoby (Pleurosicya mossambica) living commensally with Sea pen (Pennatulacea). Komodo, Indonesia; November, 2006
Swimmer crab (Lissocarcinus laevis) living commensally with Anemone (Actinodendridae). Pantar, Alor Archipelago, Indonesia.
01630283
David Hall / Swimmer crab (Lissocarcinus laevis) living commensally with Anemone (Actinodendridae). Pantar, Alor Archipelago, Indonesia.
Soft coral ghostgoby (Pleurosicya boldinghi) swimming through Soft coral (Dendronephthya). Shrimp and benthic Comb-jellies (Ctenophora) present, all commensal. Pantar, Alor Archipelago, Indonesia.
01630314
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.
Banded tozeuma shrimp (Tozeuma armatum) on Black coral (Antipatharia). Komodo, Indonesia.
01630310
David Hall / Banded tozeuma shrimp (Tozeuma armatum) on Black coral (Antipatharia). Komodo, Indonesia.
Ghostgoby (Pleurosicya boldinghi) commensal on Soft coral (Dendronephthya sp). Pantar, Alor Archipelago, Indonesia.
01630308
David Hall / Ghostgoby (Pleurosicya boldinghi) commensal on Soft coral (Dendronephthya sp). Pantar, Alor Archipelago, Indonesia.
Decorator crab (Majidae) covered with hydroid polyps, providing camouflage and defensive sting. On Soft coral (Alcyonacea). Pantar, Alor Archipelago, Indonesia; November, 2006
01630299
David Hall / Decorator crab (Majidae) covered with hydroid polyps, providing camouflage and defensive sting. On Soft coral (Alcyonacea). Pantar, Alor Archipelago, Indonesia; November, 2006
Humpback whale (Megaptera novaeangliae) calf with Remora fish (Echeneidae) on underside. Vava'u, Kingdom of Tonga, South Pacific.
01626540
Doug Perrine / Humpback whale (Megaptera novaeangliae) calf with Remora fish (Echeneidae) on underside. Vava'u, Kingdom of Tonga, South Pacific.
Doughboy Scallop (Chlamys asperrima) covered with sponge, Yorke Peninsula, South Australia, Australia
00597360
Gary Bell/ Oceanwide / Doughboy Scallop (Chlamys asperrima) covered with sponge, Yorke Peninsula, South Australia, Australia
Doughboy Scallop (Chlamys asperrima) covered with sponge, Yorke Peninsula, South Australia, Australia
00597359
Gary Bell/ Oceanwide / Doughboy Scallop (Chlamys asperrima) covered with sponge, Yorke Peninsula, South Australia, Australia
Nudibranch (Ceratosoma sp) with commensal Emperor Shrimp (Periclimenes imperator), Philippines
00597341
Gary Bell/ Oceanwide / Nudibranch (Ceratosoma sp) with commensal Emperor Shrimp (Periclimenes imperator), Philippines
Nudibranch (Ceratosoma sp) with commensal Emperor Shrimp (Periclimenes imperator), Philippines
00597340
Gary Bell/ Oceanwide / Nudibranch (Ceratosoma sp) with commensal Emperor Shrimp (Periclimenes imperator), Philippines
Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
00597333
Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
00597332
Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
Dugong or Sea cow (Dugong dugon) feeding on seagrass with  commensal juvenile Golden trevally (Gnathanodon speciosus) Calauit Island,  off Busuanga, Calamian Islands, Palawan, Philippines.
01618471
Doug Perrine / Dugong or Sea cow (Dugong dugon) feeding on seagrass with commensal juvenile Golden trevally (Gnathanodon speciosus) Calauit Island, off Busuanga, Calamian Islands, Palawan, Philippines.
Dugong or Sea cow (Dugong dugon) feeding on seagrass with commensal juvenile Golden trevally (Gnathanodon speciosus) Calauit Island, off Busuanga, Calamian Islands, Palawan, Philippines.
01618470
Doug Perrine / Dugong or Sea cow (Dugong dugon) feeding on seagrass with commensal juvenile Golden trevally (Gnathanodon speciosus) Calauit Island, off Busuanga, Calamian Islands, Palawan, Philippines.
Avian feeding frenzy with a flock of White Pelicans (Pelecanus erythrorhynchos) swimming along a channel chasing school of fish. A mixed flock of long-legged waders, including Great Egrets (Ardea alba...
01622755
Marie Read / Avian feeding frenzy with a flock of White Pelicans (Pelecanus erythrorhynchos) swimming along a channel chasing school of fish. A mixed flock of long-legged waders, including Great Egrets (Ardea alba...
Blackspotted puffer (Arothron nigropuctatus) with a juvenile cleaner wrasse. North Sulawesi, Indonesia.
01611717
Georgette Douwma / Blackspotted puffer (Arothron nigropuctatus) with a juvenile cleaner wrasse. North Sulawesi, Indonesia.
Imperial shrimp (Periclimenes imperator / Zenopontonia rex), two on Sea cucumber (Holothuroidea). Wakaya, Fiji.
01607213
David Fleetham / Imperial shrimp (Periclimenes imperator / Zenopontonia rex), two on Sea cucumber (Holothuroidea). Wakaya, Fiji.
Wire coral goby (Bryaninops yongei) with polyps extended on Wire coral (Cirrhipathes sp). Hawaii.
01607211
David Fleetham / Wire coral goby (Bryaninops yongei) with polyps extended on Wire coral (Cirrhipathes sp). Hawaii.
Peruvian Tarantula (Pamphobeteus sp.) young and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. Th...
01616508
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) young and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. Th...
Peruvian Tarantula (Pamphobeteus sp.) young and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. Th...
01616507
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) young and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. Th...
Peruvian Tarantula (Pamphobeteus sp.) and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. The tara...
01616506
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. The tara...
Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
01613275
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
01613274
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
Lemon shark (Negaprion brevirostris) underwater with Remoras (Echeneididae), motion blurred image. West End, Grand Bahama, Bahamas.
01607273
David Fleetham / Lemon shark (Negaprion brevirostris) underwater with Remoras (Echeneididae), motion blurred image. West End, Grand Bahama, Bahamas.
Oceanic whitetip shark (Carcharhinus longimanus) with Pilot fish (Naucrates ductor) and Remora (Echeneididae). In open ocean several miles off The Big Island / Hawaii, Hawaii.
01607271
David Fleetham / Oceanic whitetip shark (Carcharhinus longimanus) with Pilot fish (Naucrates ductor) and Remora (Echeneididae). In open ocean several miles off The Big Island / Hawaii, Hawaii.
Green sea turtle (Chelonia mydas) followed closely by Spotted unicorn fish (Naso brevirostris) which feeds on turtle feces, Hawaii.
01582773
David Fleetham / Green sea turtle (Chelonia mydas) followed closely by Spotted unicorn fish (Naso brevirostris) which feeds on turtle feces, Hawaii.
Southern Right Whale (Eubalaena australis) surfacing, showing callosites covered with barnacles and lice, Chubut, Argentina
00583989
Agustin Esmoris / Southern Right Whale (Eubalaena australis) surfacing, showing callosites covered with barnacles and lice, Chubut, Argentina
Yellow-spotted Amazon River Turtle (Podocnemis unifilis) with butterfly, Sani Lodge, Ecuador
00579548
Paul Bertner / Yellow-spotted Amazon River Turtle (Podocnemis unifilis) with butterfly, Sani Lodge, Ecuador
Hippopotamus (Hippopotamus amphibius) with East African Serrated Mud Turtles (Pelusios sinuatus) on back, Sabi-sands Game Reserve, South Africa
00578657
Juergen & Christine Sohns / Hippopotamus (Hippopotamus amphibius) with East African Serrated Mud Turtles (Pelusios sinuatus) on back, Sabi-sands Game Reserve, South Africa
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak, Borneo.
01590139
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak, Borneo.
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
01590138
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
01590137
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
01590136
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
Land crab (Geosesarma sp) raiding Pitcher plant (Nepenthes ampullaria) Bako Natioanl Park, Borneo Malaysia
01590135
Emanuele Biggi / Land crab (Geosesarma sp) raiding Pitcher plant (Nepenthes ampullaria) Bako Natioanl Park, Borneo Malaysia
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
01590134
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
01590133
Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak. Borneo.
Emperor shrimp (Periclemenes imperator) on Sea cucumber (Thelenota ananas), Tubbataha Natural Park, UNESCO Natural World Heritage Site,  Sulu Sea, Cagayancillo, Palawan, Philippines. April.
01585514
Franco Banfi / Emperor shrimp (Periclemenes imperator) on Sea cucumber (Thelenota ananas), Tubbataha Natural Park, UNESCO Natural World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines. April.
Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
00573155
Tui De Roy / Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
00573154
Tui De Roy / Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
01498508
Constantinos Petrinos / Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
01498506
Constantinos Petrinos / Peacock-tail anemone shrimp (Periclimenes brevicarpalis) living commensally with the Branching Sea Anemone (Actinodendron glomeratum). Lembeh Strait, North Sulawesi, Indonesia.
Emperor shrimp (Periclimenes imperator / Zenopontonia rex) with parasitic Isopod (Bopyridae) and living commensally with Leopard Sea Cucumber (Bohadschia argus) Lembeh Strait, North Sulawesi, Indonesi...
01498487
Constantinos Petrinos / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) with parasitic Isopod (Bopyridae) and living commensally with Leopard Sea Cucumber (Bohadschia argus) Lembeh Strait, North Sulawesi, Indonesi...
Scarce fungus weevil (Platyrhinus resinosus) walking on a mossy tree stump with phoretic mites attached, woodland, Nottinghamshire UK, June.
01495990
Nick Upton / Scarce fungus weevil (Platyrhinus resinosus) walking on a mossy tree stump with phoretic mites attached, woodland, Nottinghamshire UK, June.
Marsh deer (Blastocerus dichotomus) male with Cattle tyrant  (Machetornis rixosus)  Ibera Marshes, Corrientes Province, Argentina
01495003
Gabriel Rojo / Marsh deer (Blastocerus dichotomus) male with Cattle tyrant (Machetornis rixosus) Ibera Marshes, Corrientes Province, Argentina
Emperor shrimp (Periclimenes imperator / Zenopontonia rex), commensal with Amberfish Sea cucumber (Thelenota anax)  Lembeh Strait, North Sulawesi, Indonesia.
01568466
Linda Pitkin / Emperor shrimp (Periclimenes imperator / Zenopontonia rex), commensal with Amberfish Sea cucumber (Thelenota anax) Lembeh Strait, North Sulawesi, Indonesia.
Commensal emperor shrimp (Periclimenes imperator / Zenopontonia rex) hitching a ride on a Nudibranch (Risbecia tryoni).  Lembeh Strait, North Sulawesi, Indonesia.
01566414
Georgette Douwma / Commensal emperor shrimp (Periclimenes imperator / Zenopontonia rex) hitching a ride on a Nudibranch (Risbecia tryoni). Lembeh Strait, North Sulawesi, Indonesia.
RF - Emperor shrimp (Periclimenes imperator / Zenopontonia rex) exploring alien-looking landscape of host sea cucumber (Bohadschia argus). Emperor shrimps are commensals on many hosts, including sever...
01560616
Alex Mustard / RF - Emperor shrimp (Periclimenes imperator / Zenopontonia rex) exploring alien-looking landscape of host sea cucumber (Bohadschia argus). Emperor shrimps are commensals on many hosts, including sever...
Sexton beetle (Nicrophorus investigator) on a dead mouse. Drumnadrochit, Inverness, Scotland, UK, August. (The mites that can be seen are using the beetle to carry them to food; they do not parasitise...
01562085
Chris Mattison / Sexton beetle (Nicrophorus investigator) on a dead mouse. Drumnadrochit, Inverness, Scotland, UK, August. (The mites that can be seen are using the beetle to carry them to food; they do not parasitise...
Burchell's Zebra (Equus burchellii) and Cattle Egret (Bubulcus ibis), Rietvlei Nature Reserve, South Africa
00565385
Richard Du Toit / Burchell's Zebra (Equus burchellii) and Cattle Egret (Bubulcus ibis), Rietvlei Nature Reserve, South Africa
Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
01558317
Jordi Chias / Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
01558316
Jordi Chias / Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
Pearlfish (Carapus acus) reversing into anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Me...
01558315
Jordi Chias / Pearlfish (Carapus acus) reversing into anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Me...
Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
01558314
Jordi Chias / Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
01558313
Jordi Chias / Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
01558312
Jordi Chias / Pearlfish (Carapus acus) in anus of Sea cucumber (Stichopus regalis). These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain. Mediterranean...
Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
01558311
Jordi Chias / Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
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Jordi Chias / Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
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Jordi Chias / Pearlfish (Carapus acus) outside of host Sea cucumber (Stichopus regalis) at night. These species have a commensal relationship, with the fish living in the gut of the sea cucumber. Catalonia, Spain....
Great plains narrowmouth toad (Gastrophryne olivacea) and Tarantula (Aphonopelma sp) sharing  shelter under a rock, South Texas, USA, April.
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Cyril Ruoso / Great plains narrowmouth toad (Gastrophryne olivacea) and Tarantula (Aphonopelma sp) sharing shelter under a rock, South Texas, USA, April.
Cattle Egret (Bubulcus ibis) trio taking flight from Burchell's Zebras (Equus burchellii), Rietvlei Nature Reserve, South Africa
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Richard Du Toit / Cattle Egret (Bubulcus ibis) trio taking flight from Burchell's Zebras (Equus burchellii), Rietvlei Nature Reserve, South Africa
Cattle Egret (Bubulcus ibis) on Burchell's Zebra (Equus burchellii), Rietvlei Nature Reserve, South Africa
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Richard Du Toit / Cattle Egret (Bubulcus ibis) on Burchell's Zebra (Equus burchellii), Rietvlei Nature Reserve, South Africa
Lantern Fly (Pyrops whiteheadi) with Four-clawed Gecko (Gehyra mutilata) waiting below for the fly to excrete honeydew, Sabah, Borneo, Malaysia
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Chien Lee / Lantern Fly (Pyrops whiteheadi) with Four-clawed Gecko (Gehyra mutilata) waiting below for the fly to excrete honeydew, Sabah, Borneo, Malaysia
European wild rabbit (Oryctolagus cuniculus) with an Atlantic puffin (Fratercula arctica) in the background. Puffins will often use old rabbit burrows as a nesting site. Isle of Lunga, Treshnish Isles...
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Alex Hyde / European wild rabbit (Oryctolagus cuniculus) with an Atlantic puffin (Fratercula arctica) in the background. Puffins will often use old rabbit burrows as a nesting site. Isle of Lunga, Treshnish Isles...
Blackspotted stingray (Taeniurops meyeni) with a remora (Echeneis naucrates) attached to its belly swimming in the open water with a diver in the background. Ari Atoll, Maldives, Indian Ocean.
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Pascal Kobeh / Blackspotted stingray (Taeniurops meyeni) with a remora (Echeneis naucrates) attached to its belly swimming in the open water with a diver in the background. Ari Atoll, Maldives, Indian Ocean.
Honeycomb moray (Gymnothorax favagineus) cleaned by Common cleanerfish (Labroides dimidiatus) Maldives. Indian Ocean.
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Pascal Kobeh / Honeycomb moray (Gymnothorax favagineus) cleaned by Common cleanerfish (Labroides dimidiatus) Maldives. Indian Ocean.
European Rabbit (Oryctolagus cuniculus) with a Puffin (Fratercula arctica) in the background. Puffins will often use old rabbit burrows as a nesting site, Isle of Lunga, Treshnish Isles, Inner Hebride...
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Michel Poinsignon / European Rabbit (Oryctolagus cuniculus) with a Puffin (Fratercula arctica) in the background. Puffins will often use old rabbit burrows as a nesting site, Isle of Lunga, Treshnish Isles, Inner Hebride...
African Elephant (Loxodonta africana) herd with Cattle Egrets (Bubulcus ibis), Amboseli National Park, Kenya
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Hiroya Minakuchi / African Elephant (Loxodonta africana) herd with Cattle Egrets (Bubulcus ibis), Amboseli National Park, Kenya
African Elephant (Loxodonta africana) herd with Cattle Egrets (Bubulcus ibis), Amboseli National Park, Kenya
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Hiroya Minakuchi / African Elephant (Loxodonta africana) herd with Cattle Egrets (Bubulcus ibis), Amboseli National Park, Kenya
Three Cattle egrets (Bubulcus ibis) sitting on the back of an African elephant (Loxodonta africana) whilst watching for prey the elephant flushes out of the grass. Amboseli National Park, Kenya.
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Cheryl-Samantha Owen / Three Cattle egrets (Bubulcus ibis) sitting on the back of an African elephant (Loxodonta africana) whilst watching for prey the elephant flushes out of the grass. Amboseli National Park, Kenya.
Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
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Franco Banfi / Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
Devilrays (Mobula tarapacana) swimming near the surface with remoras Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
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Franco Banfi / Devilrays (Mobula tarapacana) swimming near the surface with remoras Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
Devilray (Mobula tarapacana) near surface, with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
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Franco Banfi / Devilray (Mobula tarapacana) near surface, with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean