• Résultats pour
    • vipere trigonocephale
  • (1004)
Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.
01632781
Fabio Pupin / Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.
Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.
01632780
Fabio Pupin / Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.
Peringuey's desert adder, (Bitis peringueyi), hiding under sand, Namib desert, Namibia, February . Non-ex.
01632775
Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), hiding under sand, Namib desert, Namibia, February . Non-ex.
A Banded sea krait (Laticauda colubrina) searches a seagrass bed for food, off North Sulawesi, Indonesia.
01622176
Shane Gross / A Banded sea krait (Laticauda colubrina) searches a seagrass bed for food, off North Sulawesi, Indonesia.
A Banded sea krait (Laticauda colubrina) searches a seagrass bed for food, off North Sulawesi, Indonesia.
01622175
Shane Gross / A Banded sea krait (Laticauda colubrina) searches a seagrass bed for food, off North Sulawesi, Indonesia.
Bornean keeled pit viper (Tropidolaemus subannulatus) in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
01630895
Duncan Murrell / Bornean keeled pit viper (Tropidolaemus subannulatus) in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
Sri Lankan green pit viper (Trimeresurus trigonocephalus). Laxapana Falls, Sri lanka.
01630868
Duncan Murrell / Sri Lankan green pit viper (Trimeresurus trigonocephalus). Laxapana Falls, Sri lanka.
Sri Lankan Green Pit Viper (Trimeresurus trigonocephalus). Laxapana Falls, Sri lanka.
01630867
Duncan Murrell / Sri Lankan Green Pit Viper (Trimeresurus trigonocephalus). Laxapana Falls, Sri lanka.
Bornean keeled pit viper (Tropidolaemus subannulatus) in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
01630835
Duncan Murrell / Bornean keeled pit viper (Tropidolaemus subannulatus) in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
Bornean keeled pit viper (Tropidolaemus subannulatus) juvenile in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
01630834
Duncan Murrell / Bornean keeled pit viper (Tropidolaemus subannulatus) juvenile in the Sabangau (peat-swamp) Forest, Central Kalimantan, Indonesia.
Vogel's pit viper (Trimeresurus vogeli) male in elevated rainforest habitat within the Bach Ma National Park in central Vietnam. Dry season.
01622159
Robert Valentic / Vogel's pit viper (Trimeresurus vogeli) male in elevated rainforest habitat within the Bach Ma National Park in central Vietnam. Dry season.
Truong Son Pit Viper (Viridovipera truongsonensis) male, coiled in an ambush posture, Phong Nha-Ke Bang National Park, Quang Binh Province of central Vietnam. Dry season.
01622149
Robert Valentic / Truong Son Pit Viper (Viridovipera truongsonensis) male, coiled in an ambush posture, Phong Nha-Ke Bang National Park, Quang Binh Province of central Vietnam. Dry season.
Truong son pit viper (Viridovipera truongsonensis) coiled in an ambush posture, Phong Nha-Ke Bang National Park in the Quang Binh Province of central Vietnam. Dry season.
01622148
Robert Valentic / Truong son pit viper (Viridovipera truongsonensis) coiled in an ambush posture, Phong Nha-Ke Bang National Park in the Quang Binh Province of central Vietnam. Dry season.
Sri Lankan Pit Viper (Trimeresurus trigonocephalus) Sinharaja, Southern Province, Sri Lanka
01627555
Lucas Bustamante / Sri Lankan Pit Viper (Trimeresurus trigonocephalus) Sinharaja, Southern Province, Sri Lanka
Horned viper (Vipera ammodytes) in natural setting, Turkey.
01620966
Daniel Heuclin / Horned viper (Vipera ammodytes) in natural setting, Turkey.
Horned viper (Vipera ammodytes) in natural setting, Turkey.
01620959
Daniel Heuclin / Horned viper (Vipera ammodytes) in natural setting, Turkey.
Horned viper (Vipera ammodytes) held in human hand, showing fangs, Turkey.
01620945
Daniel Heuclin / Horned viper (Vipera ammodytes) held in human hand, showing fangs, Turkey.
Two male Southern Pacific rattlesnakes (Crotalus oreganus helleri) fighting during mating season. This behaviour is known as a "combat dance", and is used to determine dominance and the right to mate...
01625449
John Chan / Two male Southern Pacific rattlesnakes (Crotalus oreganus helleri) fighting during mating season. This behaviour is known as a "combat dance", and is used to determine dominance and the right to mate...
Hog-nosed pit viper (Porthidium nasutum)  Atlantic Lowland Rainforest, Costa Rica.
01617338
Melvin Grey / Hog-nosed pit viper (Porthidium nasutum) Atlantic Lowland Rainforest, Costa Rica.
Side-striped palm pit viper (Bothriechis lateralis)  adult, Costa Rica
01617315
Melvin Grey / Side-striped palm pit viper (Bothriechis lateralis) adult, Costa Rica
Hognosed pitviper (Porthidium nasutum). Costa Rica.
01616721
Paul Hobson / Hognosed pitviper (Porthidium nasutum). Costa Rica.
Fer-de-lance (Bothrops asper) snake resting on wood on forest floor. Costa Rica.
01616671
Paul Hobson / Fer-de-lance (Bothrops asper) snake resting on wood on forest floor. Costa Rica.
Eyelash viper (Bothriechis schlegelii) on branch in rainforest. Costa Rica. 2018.
01616670
Paul Hobson / Eyelash viper (Bothriechis schlegelii) on branch in rainforest. Costa Rica. 2018.
Banded yellowlip sea snake / krait (Laticauda colubrina) in coral reef, Philippines.
01607171
David Fleetham / Banded yellowlip sea snake / krait (Laticauda colubrina) in coral reef, Philippines.
Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
01607366
Daniel Heuclin / Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
01607365
Daniel Heuclin / Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
01607364
Daniel Heuclin / Temple pitviper (Tropidolaemus subannulatus) portrait. Captive occurs in Philippines, Indonesia and Sulawesi.
Melanistic Asp viper (Vipera aspis) moving between the roots of ancient tree in old growth Beech (Fagus sylvatica) forest. Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazi...
01615235
Bruno D'Amicis / Melanistic Asp viper (Vipera aspis) moving between the roots of ancient tree in old growth Beech (Fagus sylvatica) forest. Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazi...
Adder (Vipera berus) three coiled together basking in early spring sunshine on heath North Norfolk, England, UK. April.
01609140
David Tipling / Adder (Vipera berus) three coiled together basking in early spring sunshine on heath North Norfolk, England, UK. April.
White-lipped pit viper (Trimeresurus albolabris) Lantau Island, Hong Kong, China
01608540
Magnus Lundgren / Wild Wonders of China / White-lipped pit viper (Trimeresurus albolabris) Lantau Island, Hong Kong, China
White-lipped pit viper (Trimeresurus albolabris) Lantau Island, Hong Kong, China
01608539
Magnus Lundgren / Wild Wonders of China / White-lipped pit viper (Trimeresurus albolabris) Lantau Island, Hong Kong, China
Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) hanging from branch. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
01608063
Magnus Lundgren / Wild Wonders of China / Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) hanging from branch. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) hanging from branch. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
01608062
Magnus Lundgren / Wild Wonders of China / Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) hanging from branch. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
01608061
Magnus Lundgren / Wild Wonders of China / Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
01608060
Magnus Lundgren / Wild Wonders of China / Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
01608059
Magnus Lundgren / Wild Wonders of China / Yunnan bamboo pitviper (Trimeresurus stejnegerii yunnanensis) camouflaged amongst leaves. Wuliangshan Nature Reserve, Jingdong, Yunnan Province, China.
Horned viper (Cerastes cerastes) Tenere, Sahara Desert, Niger.
01602228
Alain Dragesco-Joffe / Horned viper (Cerastes cerastes) Tenere, Sahara Desert, Niger.
Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 3 of 3
01602222
Alain Dragesco-Joffe / Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 3 of 3
Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 2 of 3
01602221
Alain Dragesco-Joffe / Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 2 of 3
Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 1 of 3
01602220
Alain Dragesco-Joffe / Sahara sand viper (Cerastes vipera) burying itself. Sahara Desert. Sequence 1 of 3
Snake charmers snakes in Marrakech, Morocco, North Africa. April 2012
01596190
Ashley Cooper / Snake charmers snakes in Marrakech, Morocco, North Africa. April 2012
Sand cat (Felis margarita) eating a Common viper (Cerastes vipera) Tenere, Sahara, Niger
01590485
Alain Dragesco-Joffe / Sand cat (Felis margarita) eating a Common viper (Cerastes vipera) Tenere, Sahara, Niger
Sand cat (Felis margarita) eating a Common viper (Cerastes vipera) Tenere, Sahara, Niger
01590484
Alain Dragesco-Joffe / Sand cat (Felis margarita) eating a Common viper (Cerastes vipera) Tenere, Sahara, Niger
Sand cat (Felis margarita) attacking a Common viper (Cerastes vipera) Tenere, Sahara, Niger
01590483
Alain Dragesco-Joffe / Sand cat (Felis margarita) attacking a Common viper (Cerastes vipera) Tenere, Sahara, Niger
Sand cat (Felis margarita) evading bite from Common viper (Cerastes vipera) prey, Tenere, Sahara, Niger
01590482
Alain Dragesco-Joffe / Sand cat (Felis margarita) evading bite from Common viper (Cerastes vipera) prey, Tenere, Sahara, Niger
Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
01602319
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
Butterfly / Rhinoceros viper (Bitis nasicornis) in leaf litter. Captive. Occurs in West and Central Africa.
01602318
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis) in leaf litter. Captive. Occurs in West and Central Africa.
Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
01602317
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
01602316
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
01602321
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
01602320
Daniel Heuclin / Butterfly / Rhinoceros viper (Bitis nasicornis). Captive. Occurs in West and Central Africa.
Yellowlip sea snake (Laticauda colubrina) on coral reef with Blue star (Linckia laevigata) Philippines. Venomous species.
01582766
David Fleetham / Yellowlip sea snake (Laticauda colubrina) on coral reef with Blue star (Linckia laevigata) Philippines. Venomous species.
Fer-de-lance (Bothrops lanceolatus) on white background, captive, endemic to Martinique.
01602131
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) on white background, captive, endemic to Martinique.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602130
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602129
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602128
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
Natural hybrid between West African Gaboon viper (Bitis gabonica rhinoceros)  and Rhinoceros viper (Bitis nasicornis) Togo. Captive.
01602127
Daniel Heuclin / Natural hybrid between West African Gaboon viper (Bitis gabonica rhinoceros) and Rhinoceros viper (Bitis nasicornis) Togo. Captive.
Natural hybrid between West African Gaboon viper (Bitis gabonica rhinoceros)  and Rhinoceros viper (Bitis nasicornis) Togo. Captive.
01602126
Daniel Heuclin / Natural hybrid between West African Gaboon viper (Bitis gabonica rhinoceros) and Rhinoceros viper (Bitis nasicornis) Togo. Captive.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602125
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602124
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
01602123
Daniel Heuclin / Fer-de-lance (Bothrops lanceolatus) captive, endemic to Martinique.
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597976
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597975
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597974
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597973
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597972
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597971
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597970
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597969
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
01597968
Daniel Heuclin / West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
01597967
Daniel Heuclin / West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
01597966
Daniel Heuclin / West African tree viper (Atheris chlorechis) on branch Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597965
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597964
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
01597963
Daniel Heuclin / West African tree viper (Atheris chlorechis) portrait, Togo. Controlled conditions
Adder (Vipera berus) gravid female, England, UK, September.
01597216
John Cancalosi / Adder (Vipera berus) gravid female, England, UK, September.
Timber rattlesnakes (Crotalus horridus), gravid females basking to bring young to term, Pennsylvania
01597203
John Cancalosi / Timber rattlesnakes (Crotalus horridus), gravid females basking to bring young to term, Pennsylvania
Night adder (Causus defilippi)  Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.
01593242
Jen Guyton / Night adder (Causus defilippi) Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.
Eyelash viper (Bothriechis schlegelii) waiting for prey on the trunk of a tree, La Selva Biological Station, Costa Rica. Small repro only.
01593239
Jen Guyton / Eyelash viper (Bothriechis schlegelii) waiting for prey on the trunk of a tree, La Selva Biological Station, Costa Rica. Small repro only.
Night adder (Causus defilippi) on white background. Gorongosa National Park, Mozambique. Controlled conditions.
01593221
Jen Guyton / Night adder (Causus defilippi) on white background. Gorongosa National Park, Mozambique. Controlled conditions.
Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica.
01593292
Jen Guyton / Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica.
Eyelash viper (Bothriechis schlegelii) waitingfor prey on tree trunk,  La Selva Biological Station, Costa Rica.
01593287
Jen Guyton / Eyelash viper (Bothriechis schlegelii) waitingfor prey on tree trunk, La Selva Biological Station, Costa Rica.
Eyelash viper (Bothriechis schlegelii) waiting for prey on tree, La Selva Biological Station, Costa Rica.
01593278
Jen Guyton / Eyelash viper (Bothriechis schlegelii) waiting for prey on tree, La Selva Biological Station, Costa Rica.
Night adder (Causus defilippi) basking on a rock after light rain. from the Greater Gorongosa Ecosystem, Mozambique.
01593266
Jen Guyton / Night adder (Causus defilippi) basking on a rock after light rain. from the Greater Gorongosa Ecosystem, Mozambique.
Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica
01593264
Jen Guyton / Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica
Snouted night adder (Causus defilippi) Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.
01593327
Jen Guyton / Snouted night adder (Causus defilippi) Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.
Nght adder (Causus defilippi) basks on a rock after light rain. Greater Gorongosa Ecosystem, Mozambique,
01593325
Jen Guyton / Nght adder (Causus defilippi) basks on a rock after light rain. Greater Gorongosa Ecosystem, Mozambique,
Horned adder (Bitis caudalis) eyes and horns, Swakopmund, Erongo, Namibia.
01592442
Lucas Bustamante / Horned adder (Bitis caudalis) eyes and horns, Swakopmund, Erongo, Namibia.
Timber rattlesnake  (Crotalus horridus) with babies aged  two days.  Rhode Island, USA. Photographed as part of a captive breeding and release programme, Roger Williams Park Zoo.
01590733
Paul Williams / Timber rattlesnake (Crotalus horridus) with babies aged two days. Rhode Island, USA. Photographed as part of a captive breeding and release programme, Roger Williams Park Zoo.
Timber rattlesnake  (Crotalus horridus) female close up of scales, Rhode Island, USA. Part of captive breeding and release programme, Roger Williams Park Zoo.
01590732
Paul Williams / Timber rattlesnake (Crotalus horridus) female close up of scales, Rhode Island, USA. Part of captive breeding and release programme, Roger Williams Park Zoo.
Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
01590731
Paul Williams / Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
01590730
Paul Williams / Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
01590729
Paul Williams / Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
01590728
Paul Williams / Timber rattlesnake (Crotalus horridus) with babies aged two days, part of a captive breeding and release programme, Roger Williams Park Zoo.
Orsini's viper (Vipera ursinii) adult portrait. Endemic to the Apennines. Abruzzo, Italy, June.
01595126
Bruno D'Amicis / Orsini's viper (Vipera ursinii) adult portrait. Endemic to the Apennines. Abruzzo, Italy, June.
Horned adder (Bitis caudalis) close up of eye, Brandberg area, Namibia
01592798
Emanuele Biggi / Horned adder (Bitis caudalis) close up of eye, Brandberg area, Namibia