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African Elephant (Loxodonta africana) five year old male calves play push and pull games to test strength and establish dominance, Masai Mara National Reserve, Kenya  -  Yva Momatiuk & John Eastcott
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00344808 African Elephant (Loxodonta africana) five year old male calves play push and pull games to test strength and establish dominance, Masai Mara National Reserve, Kenya© Yva Momatiuk & John Eastcott
Komodo Dragon (Varanus komodoensis) large male testing ground for scent with specialized forked tongue, Komodo National Park, Komodo Island, Indonesia  -  Mark Jones
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00140237 Komodo Dragon (Varanus komodoensis) large male testing ground for scent with specialized forked tongue, Komodo National Park, Komodo Island, Indonesia© Mark Jones
Polar bear males testing each other's strength, Churchill, Manitoba, Canada
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90718622 Polar bear males testing each other's strength, Churchill, Manitoba, Canada© Doug Allan
American Bison (Bison bison) bull scenting cow's urine for signs of estrus, Yellowstone National Park, Montana  -  Suzi Eszterhas
00761607
00761607 American Bison (Bison bison) bull scenting cow's urine for signs of estrus, Yellowstone National Park, Montana© Suzi Eszterhas
California Sea Lion (Zalophus californianus) in rehab center on EEG being tested for domoic acid poisoning from algal blooms, Marine Mammal Center, Marin county, California  -  Suzi Eszterhas
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00761035 California Sea Lion (Zalophus californianus) in rehab center on EEG being tested for domoic acid poisoning from algal blooms, Marine Mammal Center, Marin county, California© Suzi Eszterhas
Reticulated Giraffe (Giraffa reticulata) the male is licking and then smelling urine (Flehmen response) of a female to test her reproductive status, Lewa Wildlife Conservany, Kenya  -  Richard Du Toit
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00630404 Reticulated Giraffe (Giraffa reticulata) the male is licking and then smelling urine (Flehmen response) of a female to test her reproductive status, Lewa Wildlife Conservany, Kenya© Richard Du Toit
Mountain Lion (Puma concolor) biologist, Justine Alyssa Smith, transferring blood for analysis, Santa Cruz Puma Project, UCSC Campus, Santa Cruz, Monterey Bay, California
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00558574 Mountain Lion (Puma concolor) biologist, Justine Alyssa Smith, transferring blood for analysis, Santa Cruz Puma Project, UCSC Campus, Santa Cruz, Monterey Bay, California© Sebastian Kennerknecht
Sea Otter (Enhydra lutris) three week old orphaned pup getting blood test, Alaska SeaLife Center, Seward, Alaska
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00556390 Sea Otter (Enhydra lutris) three week old orphaned pup getting blood test, Alaska SeaLife Center, Seward, Alaska© Suzi Eszterhas
Common Frog (Rana temporaria) biologist Claude Miaud testing for signs of the deadly chytrid fungus, Alps, France  -  Cyril Ruoso
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00455151 Common Frog (Rana temporaria) biologist Claude Miaud testing for signs of the deadly chytrid fungus, Alps, France© Cyril Ruoso
Common Frog (Rana temporaria) biologist testing for signs of the deadly chytrid fungus, Alps, France  -  Cyril Ruoso
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00455148 Common Frog (Rana temporaria) biologist testing for signs of the deadly chytrid fungus, Alps, France© Cyril Ruoso
Chimpanzee (Pan troglodytes) in drawing versus photo recognition experiment, Tokyo University, Inuyama, Japan  -  Cyril Ruoso
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00441185 Chimpanzee (Pan troglodytes) in drawing versus photo recognition experiment, Tokyo University, Inuyama, Japan© Cyril Ruoso
Chimpanzee (Pan troglodytes) in face recognition experiment, Tokyo University, Inuyama, Japan  -  Cyril Ruoso
00441184
00441184 Chimpanzee (Pan troglodytes) in face recognition experiment, Tokyo University, Inuyama, Japan© Cyril Ruoso
Chimpanzee (Pan troglodytes) in face recognition experiment, Tokyo University, Inuyama, Japan  -  Cyril Ruoso
00441183
00441183 Chimpanzee (Pan troglodytes) in face recognition experiment, Tokyo University, Inuyama, Japan© Cyril Ruoso
Vizsla (Canis familiaris) doing weave poles during agility test  -  Mark Raycroft
00302025
00302025 Vizsla (Canis familiaris) doing weave poles during agility test© Mark Raycroft
Brown Capuchin (Cebus apella) pair sitting on anvil used to crack open Piassava Palm (Attalea funifera) nut, monkey on left knocking nuts together to test for freshness, Cerrado habitat, Piaui State,...  -  Pete Oxford
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00216559 Brown Capuchin (Cebus apella) pair sitting on anvil used to crack open Piassava Palm (Attalea funifera) nut, monkey on left knocking nuts together to test for freshness, Cerrado habitat, Piaui State,...© Pete Oxford
Researchers test efficiency of Turtle Exclusion Device, Florida  -  Norbert Wu
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00136136 Researchers test efficiency of Turtle Exclusion Device, Florida© Norbert Wu
Timber Wolf (Canis lupus) testing lake ice, Minnesota  -  Jim Brandenburg
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00125641 Timber Wolf (Canis lupus) testing lake ice, Minnesota© Jim Brandenburg
Inuits testing ice strength, Arctic Bay, Baffin Island, Canada  -  Flip Nicklin
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00095752 Inuits testing ice strength, Arctic Bay, Baffin Island, Canada© Flip Nicklin
Inca laboratory possibly used for testing seeds and plants before planting in wider district, Urubamba Valley near Cuzco, Peru  -  Colin Monteath/ Hedgehog House
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00498227 Inca laboratory possibly used for testing seeds and plants before planting in wider district, Urubamba Valley near Cuzco, Peru© Colin Monteath/ Hedgehog House
Red squirrel (Sciurus vulgaris) testing nut. Cairngorms National Park, Highlands, Scotland, UK, November.
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90759768 Red squirrel (Sciurus vulgaris) testing nut. Cairngorms National Park, Highlands, Scotland, UK, November.© SCOTLAND: The Big Picture
Hammer Headed bats (Hypsignathus monstrosus) in gloved hand - live mist net catch for blood sampling in search of the unknown reservoir host for Ebola virus. Ebola outbreaks in Mbomo in 2003 killed 12...
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90731304 Hammer Headed bats (Hypsignathus monstrosus) in gloved hand - live mist net catch for blood sampling in search of the unknown reservoir host for Ebola virus. Ebola outbreaks in Mbomo in 2003 killed 12...© Jabruson
Reticulated giraffe (Giraffa camelopardalis reticulata) male sniffing female, testing her receptiveness to mate Samburu game reserve, Kenya  -  Denis Huot/ npl
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90673310 Reticulated giraffe (Giraffa camelopardalis reticulata) male sniffing female, testing her receptiveness to mate Samburu game reserve, Kenya© Denis-Huot / NPL
Honey Bee (Apis mellifera) research, determining impact of different insecticides on bees, Bee Research Institute Oberursel, Germany
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00642329 Honey Bee (Apis mellifera) research, determining impact of different insecticides on bees, Bee Research Institute Oberursel, Germany© Ingo Arndt
Komodo Dragon (Varanus komodoensis) trap with biologist Tim Jessup and his team capture and measure, weigh, tag and test blood, Rinca Island, Komodo National Park, Indonesia  -  Cyril Ruoso
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00620461 Komodo Dragon (Varanus komodoensis) trap with biologist Tim Jessup and his team capture and measure, weigh, tag and test blood, Rinca Island, Komodo National Park, Indonesia© Cyril Ruoso
Honey Bee (Apis mellifera) pair returning to experimental hive testing optical orientation and memory, Germany
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00594154 Honey Bee (Apis mellifera) pair returning to experimental hive testing optical orientation and memory, Germany© Ingo Arndt
Cape Buffalo (Syncerus caffer) tranquilized and tested for hoof-and-mouth disease, Gorongosa National Park, Mozambique
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00585919 Cape Buffalo (Syncerus caffer) tranquilized and tested for hoof-and-mouth disease, Gorongosa National Park, Mozambique© Piotr Naskrecki
Chimpanzee (Pan troglodytes) orphan Larry testing new leaf for taste, Ape Action Africa, Mefou Primate Sanctuary, Cameroon
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00573752 Chimpanzee (Pan troglodytes) orphan Larry testing new leaf for taste, Ape Action Africa, Mefou Primate Sanctuary, Cameroon© Gerry Ellis
Chimpanzee (Pan troglodytes) orphans Daphne and Larry testing new leaf for taste, Ape Action Africa, Mefou Primate Sanctuary, Cameroon
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00573751 Chimpanzee (Pan troglodytes) orphans Daphne and Larry testing new leaf for taste, Ape Action Africa, Mefou Primate Sanctuary, Cameroon© Gerry Ellis
Brown-throated Three-toed Sloth (Bradypus variegatus) biologist, Rebecca Cliffe, and veterinarian, Yolanda Ruba, taking blood from anesthetized sloth, Aviarios Sloth Sanctuary, Costa Rica  -  Suzi Eszterhas
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00546511 Brown-throated Three-toed Sloth (Bradypus variegatus) biologist, Rebecca Cliffe, and veterinarian, Yolanda Ruba, taking blood from anesthetized sloth, Aviarios Sloth Sanctuary, Costa Rica© Suzi Eszterhas
Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis) biologist, Stephen Spear, tests water for salamander DNA to determine presence or absence of species, Hiwassee River, Cherokee National...  -  Pete Oxford
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00541002 Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis) biologist, Stephen Spear, tests water for salamander DNA to determine presence or absence of species, Hiwassee River, Cherokee National...© Pete Oxford
Spectacled Bear (Tremarctos ornatus) 2-year old female testing cactus spines, Chaparri Reserve, Lambayeque Province, Peru  -  Kevin Schafer
00538031
00538031 Spectacled Bear (Tremarctos ornatus) 2-year old female testing cactus spines, Chaparri Reserve, Lambayeque Province, Peru© Kevin Schafer
Oregon Spotted Frog (Rana pretiosa) biologist Mark Hayes with inmate checking implanted tracking device before release as part of sustainability in prison program, Cedar Creek Corrections Center, Wash...  -  Cyril Ruoso
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00518397 Oregon Spotted Frog (Rana pretiosa) biologist Mark Hayes with inmate checking implanted tracking device before release as part of sustainability in prison program, Cedar Creek Corrections Center, Wash...© Cyril Ruoso
Olive Ridley Sea Turtle (Lepidochelys olivacea) female testing beach sand suitability for laying eggs, Ostional Beach, Costa Rica  -  Ingo Arndt
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00518076 Olive Ridley Sea Turtle (Lepidochelys olivacea) female testing beach sand suitability for laying eggs, Ostional Beach, Costa Rica© Ingo Arndt
Arctic Fox (Alopex lagopus) testing the depth of the water, King Oscar Fjord, Greenland  -  Klein and Hubert
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00489860 Arctic Fox (Alopex lagopus) testing the depth of the water, King Oscar Fjord, Greenland© Klein and Hubert
Brown Rat (Rattus norvegicus) tail samples for DNA testing for South Georgia Heritage Trust Rat Eradication Project, King Edward Point, South Georgia Island  -  Ingo Arndt
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00462953 Brown Rat (Rattus norvegicus) tail samples for DNA testing for South Georgia Heritage Trust Rat Eradication Project, King Edward Point, South Georgia Island© Ingo Arndt
Carpenter Ant (Camponotus fellah) in test tube, Switzerland  -  Heidi & Hans-Juergen Koch
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00423035 Carpenter Ant (Camponotus fellah) in test tube, Switzerland© Heidi & Hans-Juergen Koch
Carpenter Ant (Camponotus fellah) pair in test tube, Switzerland  -  Heidi & Hans-Juergen Koch
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00423034 Carpenter Ant (Camponotus fellah) pair in test tube, Switzerland© Heidi & Hans-Juergen Koch
Honey Bee (Apis mellifera) taped to husks to be conditioned to out-stretch tongue, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany  -  Heidi & Hans-Juergen Koch
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00241074 Honey Bee (Apis mellifera) taped to husks to be conditioned to out-stretch tongue, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany© Heidi & Hans-Juergen Koch
Honey Bee (Apis mellifera) taped to husks to be conditioned to out-stretch tongue, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany  -  Heidi & Hans-Juergen Koch
00241024
00241024 Honey Bee (Apis mellifera) taped to husks to be conditioned to out-stretch tongue, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany© Heidi & Hans-Juergen Koch
Honey Bee (Apis mellifera) fitness test, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany  -  Heidi & Hans-Juergen Koch
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00241023 Honey Bee (Apis mellifera) fitness test, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany© Heidi & Hans-Juergen Koch
Golden Hamster (Mesocricetus auratus) taking a smear test of a female for a fertility check in a laboratory at the Martin Luther University of Halle, Wittenberg, Germany  -  Heidi & Hans-Juergen Koch
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00240022 Golden Hamster (Mesocricetus auratus) taking a smear test of a female for a fertility check in a laboratory at the Martin Luther University of Halle, Wittenberg, Germany© Heidi & Hans-Juergen Koch
Freshwater biologists taking water samples for eDNA testing, kettle hole pond, Shawbury Heath, Shropshire, England, UK. May, 2021. Model released.
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90874974 Freshwater biologists taking water samples for eDNA testing, kettle hole pond, Shawbury Heath, Shropshire, England, UK. May, 2021. Model released.©
Chick Black-headed gull (Chroicocephalus ridibundus) flight testing on the nest, Vendeen Marsh, Vendee, France, May.
90873058
90873058 Chick Black-headed gull (Chroicocephalus ridibundus) flight testing on the nest, Vendeen Marsh, Vendee, France, May.©
Photographer Matt Maran testing remote camera for a planned shot to capture a Red fox (Vulpes vulpes) next to a stencil by Stewy Stencils North London, England, UK. March 2018.
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90870106 Photographer Matt Maran testing remote camera for a planned shot to capture a Red fox (Vulpes vulpes) next to a stencil by Stewy Stencils North London, England, UK. March 2018.©
Photographer Tim Laman triggers camera trap to test it. Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expedition)
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90864662 Photographer Tim Laman triggers camera trap to test it. Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expedition)©
Photographer Will Burrard-Lucas testing a camera trap, in the hope of photographing a melanistic leopard. Laikipia Wilderness Camp, Kenya. Photographed with a camera trap.
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90857810 Photographer Will Burrard-Lucas testing a camera trap, in the hope of photographing a melanistic leopard. Laikipia Wilderness Camp, Kenya. Photographed with a camera trap.©
Researchers examining Raptor pellets to identify eaten prey. Part of a 60 year long-term study led by Fred Koning to monitor raptors and their nests in a 3,400 hectare area of coastal dunes. Near Amst...
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90852789 Researchers examining Raptor pellets to identify eaten prey. Part of a 60 year long-term study led by Fred Koning to monitor raptors and their nests in a 3,400 hectare area of coastal dunes. Near Amst...©
Raptor pellet in hand, researcher dissecting pellet to discover prey eaten by bird. Part of a 60 year long-term study led by Fred Koning to monitor raptors and their nests in a 3,400 hectare area of c...
90852788
90852788 Raptor pellet in hand, researcher dissecting pellet to discover prey eaten by bird. Part of a 60 year long-term study led by Fred Koning to monitor raptors and their nests in a 3,400 hectare area of c...©
Ecologist capturing moth in tube for identification, moth attracted to sheet by artificial light. Long-term monitoring has revealed a 50% decrease in moth numbers in 25 years. De Kaaistoep Nature Rese...
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90849923 Ecologist capturing moth in tube for identification, moth attracted to sheet by artificial light. Long-term monitoring has revealed a 50% decrease in moth numbers in 25 years. De Kaaistoep Nature Rese...©
Ecologist capturing moth in tube for identification, moth attracted to sheet by artificial light. Long-term monitoring has revealed a 50% decrease in moth numbers in 25 years. De Kaaistoep Nature Rese...
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90849922 Ecologist capturing moth in tube for identification, moth attracted to sheet by artificial light. Long-term monitoring has revealed a 50% decrease in moth numbers in 25 years. De Kaaistoep Nature Rese...©
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