Joel Sartore / Photo Ark / Daggertooth pike conger eel (Muraenesox cinereus) portrait, Sharjah Aquarium, UAE. Captive.
01737207
Joel Sartore / Photo Ark / Daggertooth pike conger eel (Muraenesox cinereus) head portrait, Sharjah Aquarium, UAE. Captive.
01737186
Joel Sartore / Photo Ark / Black buffalo (Ictiobus niger) head portrait, from the wild, Duck River, Tennessee, USA.
01737184
Joel Sartore / Photo Ark / Black buffalo (Ictiobus niger) portrait, from the wild, Duck River, Tennessee, USA.
01737183
Joel Sartore / Photo Ark / Bigmouth buffalo (Ictiobus cyprinellus) head portrait, from the wild, Duck River, Tennessee, USA.
01737180
Joel Sartore / Photo Ark / River carpsucker (Carpiodes carpio) head portrait, from the wild, Duck River, Tennessee, USA.
01737178
Joel Sartore / Photo Ark / River carpsucker (Carpiodes carpio) portrait, from the wild, Duck River, Tennessee, USA.
01737177
Joel Sartore / Photo Ark / River carpsucker (Carpiodes carpio) head portrait, from the wild, Duck River, Tennessee, USA.
01737176
Joel Sartore / Photo Ark / River carpsucker (Carpiodes carpio) portrait, from the wild, Duck River, Tennessee, USA.
01737172
Joel Sartore / Photo Ark / Blue sucker (Cycleptus elongatus) head portrait, from the wild, Duck River, Tennessee, USA.
01737171
Joel Sartore / Photo Ark / Blue sucker (Cycleptus elongatus) portrait, from the wild, Duck River, Tennessee, USA.
01737170
Joel Sartore / Photo Ark / Silver redhorse (Moxostoma anisurum) head portrait, from the wild, Duck River, Tennessee, USA.
01737169
Joel Sartore / Photo Ark / Silver redhorse (Moxostoma anisurum) head portrait, from the wild, Duck River, Tennessee, USA.
01737168
Joel Sartore / Photo Ark / Silver redhorse (Moxostoma anisurum) portrait, from the wild, Duck River, Tennessee, USA.
01737153
Joel Sartore / Photo Ark / Eastern creek chubsucker (Erimyzon oblongus) head portrait, Marion Conservation Aquaculture Center. This individual was originally from Bear Creek, North Carolina, USA. Captive.
01737151
Joel Sartore / Photo Ark / Eastern creek chubsucker (Erimyzon oblongus) portrait, Marion Conservation Aquaculture Center. This individual was originally from Bear Creek, North Carolina, USA. Captive.
01737145
Joel Sartore / Photo Ark / Bandula barb (Pethia bandula) portrait, Plzen Zoo. Captive, occurs in Sri Lanka. Critically endangered.
01737138
Joel Sartore / Photo Ark / Reticulated hillstream loach (Sewellia lineolata) portrait, Loveland Living Planet Aquarium. Captive, occurs in Vietnam.
01737134
Joel Sartore / Photo Ark / Reticulated hillstream loach (Sewellia lineolata) portrait, Loveland Living Planet Aquarium. Captive, occurs in Vietnam.
01737132
Joel Sartore / Photo Ark / Borneo sucker loach (Gastromyzon ctenocephalus) portrait, Loveland Living Planet Aquarium. Captive, occurs in Borneo.
01737131
Joel Sartore / Photo Ark / Borneo sucker loach (Gastromyzon ctenocephalus) portrait, Loveland Living Planet Aquarium. Captive, occurs in Borneo.
01737128
Joel Sartore / Photo Ark / Arabian himri (Carasobarbus apoensis) portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Saudi Arabia. Endangered.
01737127
Joel Sartore / Photo Ark / Arabian himri (Carasobarbus apoensis) head portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Saudi Arabia. Endangered.
01737126
Joel Sartore / Photo Ark / Dead Sea garra (Garra ghorensis) portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Jordan. Endangered.
01737125
Joel Sartore / Photo Ark / Tawi Atair garra (Garra dunsirei) head portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Oman. Endangered.
01737123
Joel Sartore / Photo Ark / Tawi Atair garra (Garra dunsirei) portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Oman. Endangered
01737122
Joel Sartore / Photo Ark / Wadi Hasik garra (Garra smartae) portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Oman.
01737121
Joel Sartore / Photo Ark / Wadi Hasik garra (Garra smartae) portrait, Arabia's Wildlife Centre, UAE. Captive, occurs in Oman.
01737119
Joel Sartore / Photo Ark / Hajar lotak (Cyprinion muscatense) head portrait, Arabia's Wildlife Centre, UAE. Captive.
01737118
Joel Sartore / Photo Ark / Hajar lotak (Cyprinion muscatense) portrait, Arabia's Wildlife Centre, UAE. Captive.
01737108
Joel Sartore / Photo Ark / Spotfin shiner (Cyprinella spiloptera) portrait, from the wild, Duck River, Tennessee, USA.
01737099
Joel Sartore / Photo Ark / Smoky dace (Clinostomus sp.) portrait, Marion Conservation Aquaculture Center, North Carolina. USA. Captive, this species is only found in the Little Tennessee River basin.
01728801
Jack Perks / Three-spined stickleback (Gasterosteus aculeatus) male making a nest. The fish repeatedly swims in and out of the frame with vegetation in its mouth, constructing the nest with this material. UK, June...
01731433
Joel Sartore / Photo Ark / Brilliant rasbora (Rasbora einthovenii) portrait, Nebraska Aquatic Supply. Captive, occurs in Southeast Asia and Indonesia.
01731432
Joel Sartore / Photo Ark / Brilliant rasbora (Rasbora einthovenii) portrait, Nebraska Aquatic Supply. Captive, occurs in Southeast Asia and Indonesia.
01721739
Joel Sartore / Photo Ark / Oyster toadfish (Opsanus tau) portrait, Virginia Aquarium and Marine Science Center. Captive, occurs in Northeastern Atlantic Ocean.
01721736
Joel Sartore / Photo Ark / Oyster toadfish (Opsanus tau) head portrait, Virginia Aquarium and Marine Science Center. Captive, occurs in Northeastern Atlantic Ocean.
01721729
Joel Sartore / Photo Ark / Oyster toadfish (Opsanus tau) portrait, Virginia Aquarium and Marine Science Center. Captive, occurs in Northeastern Atlantic Ocean.
01721727
Joel Sartore / Photo Ark / Oyster toadfish (Opsanus tau) head portrait, Virginia Aquarium and Marine Science Center. Captive, occurs in Northeastern Atlantic Ocean.
01721723
Joel Sartore / Photo Ark / Gulf toadfish (Opsanus beta) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Gulf of Mexico.
01721721
Joel Sartore / Photo Ark / Gulf toadfish (Opsanus beta) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Gulf of Mexico.
01721719
Joel Sartore / Photo Ark / Gulf toadfish (Opsanus beta) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Gulf of Mexico.
01721718
Joel Sartore / Photo Ark / Leopard toadfish (Opsanus pardus) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Western Atlantic Ocean.
01721717
Joel Sartore / Photo Ark / Leopard toadfish (Opsanus pardus) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Western Atlantic Ocean.
01721709
Joel Sartore / Photo Ark / Grey triggerfish (Balistes capriscus) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Atlantic Ocean.
01721707
Joel Sartore / Photo Ark / Grey triggerfish (Balistes capriscus) portrait, Gulf Specimen Marine Lab and Aquarium. Captive, occurs in Atlantic Ocean.
01722049
Joel Sartore / Photo Ark / Cherry barb (Puntius titteya) portrait, Paris Aquarium. Captive, occurs in Sri Lanka.
01722048
Joel Sartore / Photo Ark / Cherry barb (Puntius titteya) portrait, Paris Aquarium. Captive, occurs in Sri Lanka.
01722047
Joel Sartore / Photo Ark / Silver barb (Barbonymus gonionotus) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in South East Asia.
01722046
Joel Sartore / Photo Ark / Javaen barb (Systomus orphoides) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in South East Asia.
01722045
Joel Sartore / Photo Ark / Silver barb (Barbonymus gonionotus) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in South East Asia.
01722044
Joel Sartore / Photo Ark / Spanner barb (Barbodes lateristriga) at Zoo Negara, Kuala Lumpar, Malaysia. Captive.
01722043
Joel Sartore / Photo Ark / Spanner barb (Barbodes lateristriga) at Zoo Negara, Kuala Lumpar, Malaysia. Captive.
01722042
Joel Sartore / Photo Ark / Spotted barb (Barbodes binotatus) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in Java.
01722041
Joel Sartore / Photo Ark / Spotted barb (Barbodes binotatus) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in Java.
01722040
Joel Sartore / Photo Ark / Javaen barb (Systomus orphoides) portrait, Zoo Negara, Kuala Lumpar. Captive, occurs in South East Asia.
01721987
Joel Sartore / Photo Ark / Barred bichir (Polypterus delhezi) portrait, Moscow Zoo. Captive, occurs in Congo River.
01721986
Joel Sartore / Photo Ark / Barred bichir (Polypterus delhezi) portrait, Moscow Zoo. Captive, occurs in Congo River.
01721985
Joel Sartore / Photo Ark / Guinean bichir (Polypterus ansorgii) portrait, Moscow Zoo. Captive, occurs in Western Africa.
01721984
Joel Sartore / Photo Ark / Nile bichir (Polypterus bichir) head portrait, Moscow Zoo. Captive, occurs in Africa.
01721983
Joel Sartore / Photo Ark / Nile bichir (Polypterus bichir) portrait, Moscow Zoo. Captive, occurs in Africa.
01721982
Joel Sartore / Photo Ark / Ornate bichir (Polypterus ornatipinnis) portrait, Moscow Zoo. Captive, occurs in Central and east Africa.
01721981
Joel Sartore / Photo Ark / Ornate bichir (Polypterus ornatipinnis) portrait, Moscow Zoo. Captive, occurs in Central and east Africa.
01721980
Joel Sartore / Photo Ark / Saddled bichir (Polypterus endlicheri) portrait, Moscow Zoo. Captive, occurs in Africa.
01721979
Joel Sartore / Photo Ark / Reedfish (Erpetoichthys calabaricus) portrait, Moscow Zoo. Captive, occurs in Africa.
01721978
Joel Sartore / Photo Ark / Guinean bichir (Polypterus ansorgii) portrait, Moscow Zoo. Captive, occurs in Western Africa.
01721977
Joel Sartore / Photo Ark / Reedfish (Erpetoichthys calabaricus) head portrait, Moscow Zoo. Captive, occurs in Africa.
01721976
Joel Sartore / Photo Ark / Reedfish (Erpetoichthys calabaricus) portrait, Moscow Zoo. Captive, occurs in Africa.
01721974
Joel Sartore / Photo Ark / Saddled bichir (Polypterus endlicheri) portrait, Moscow Zoo. Captive, occurs in Africa.
01721973
Joel Sartore / Photo Ark / Ornate bichir (Polypterus ornatipinnis) portrait, Moscow Zoo. Captive, occurs in Central and east Africa.
01721972
Joel Sartore / Photo Ark / Barred bichir (Polypterus delhezi) portrait, Moscow Zoo. Captive, occurs in Congo River.
01721971
Joel Sartore / Photo Ark / Ornate bichir (Polypterus ornatipinnis) portrait, Budapest Zoo. Captive, occurs in Central and east Africa.
01721970
Joel Sartore / Photo Ark / Ornate bichir (Polypterus ornatipinnis) head portrait, Budapest Zoo. Captive, occurs in Central and east Africa.
01721931
Joel Sartore / Photo Ark / Grass carp (Ctenopharyngodon idella) head portrait, Schramm Education Center. Captive, occurs in eastern and Southeast Asia.
01721930
Joel Sartore / Photo Ark / Grass carp (Ctenopharyngodon idella) portrait, Schramm Education Center. Captive, occurs in eastern and Southeast Asia.
01721929
Joel Sartore / Photo Ark / Grass carp (Ctenopharyngodon idella) portrait, Schramm Education Center. Captive, occurs in eastern and Southeast Asia.
01721928
Joel Sartore / Photo Ark / Grass carp (Ctenopharyngodon idella) head portrait, Schramm Education Center. Captive, occurs in eastern and Southeast Asia.
01721927
Joel Sartore / Photo Ark / Silver carp (Hypophthalmichthys molitrix) head portrait, Schramm Education Center. Captive, occurs in Asia.
01721926
Joel Sartore / Photo Ark / Silver carp (Hypophthalmichthys molitrix) portrait, Schramm Education Center. Captive, occurs in Asia.
01721925
Joel Sartore / Photo Ark / Silver carp (Hypophthalmichthys molitrix) head portrait, Schramm Education Center. Captive, occurs in Asia.
01721924
Joel Sartore / Photo Ark / Silver carp (Hypophthalmichthys molitrix) portrait, Schramm Education Center. Captive, occurs in Asia.
01721917
Joel Sartore / Photo Ark / Alborella (Alburnus arborella) head portrait, Alpenzoo. Captive, occurs in Europe.
01721916
Joel Sartore / Photo Ark / Alborella (Alburnus arborella) portrait, Alpenzoo. Captive, occurs in Europe.
01721915
Joel Sartore / Photo Ark / Alborella (Alburnus arborella) portrait, Alpenzoo. Captive, occurs in Europe.
01721911
Joel Sartore / Photo Ark / Flying fox fish (Epalzeorhynchos kalopterus) portrait, Conservation Fisheries Knoxville. Captive, occurs in Southeast Asia.
01721909
Joel Sartore / Photo Ark / Flying fox fish (Epalzeorhynchos kalopterus) portrait, Conservation Fisheries Knoxville. Captive, occurs in Southeast Asia.
01721908
Joel Sartore / Photo Ark / Flying fox fish (Epalzeorhynchos kalopterus) portrait, Conservation Fisheries Knoxville. Captive, occurs in Southeast Asia.
01721907
Joel Sartore / Photo Ark / Flying fox fish (Epalzeorhynchos kalopterus) portrait, Conservation Fisheries Knoxville. Captive, occurs in Southeast Asia.
Joel Sartore / Photo Ark / African sharptooth catfish (Clarias gariepinus) portrait, Davao Crocodile Park. Captive, occurs in Africa and Middle East.
01721904
Joel Sartore / Photo Ark / African sharptooth catfish (Clarias gariepinus) head portrait, Davao Crocodile Park. Captive, occurs in Africa and Middle East.
01721903
Joel Sartore / Photo Ark / African sharptooth catfish (Clarias gariepinus) portrait, Davao Crocodile Park. Captive, occurs in Africa and Middle East.
01721902
Joel Sartore / Photo Ark / African sharptooth catfish (Clarias gariepinus) head portrait, Davao Crocodile Park. Captive, occurs in Africa and Middle East.
01721901
Joel Sartore / Photo Ark / Walking catfish (Clarias batrachus) head portrait, University of the Philippines. Captive, occurs in Southeast Asia.
01721900
Joel Sartore / Photo Ark / Walking catfish (Clarias batrachus) portrait, University of the Philippines. Captive, occurs in Southeast Asia.
01721899
Joel Sartore / Photo Ark / Agassiz's catfish (Corydoras agassizii) portrait, Oklahoma City Zoo. Captive, occurs in Amazon Basin.