• Résultats pour
    • Thermoregulation
  • (2395)
Emperor penguin males incubating eggs huddle for warmth at -40 degrees centigrade, winter, Antarctica. Green is excrement on snow. {Aptenodytes forsteri}
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Doug Allan / Emperor penguin males incubating eggs huddle for warmth at -40 degrees centigrade, winter, Antarctica. Green is excrement on snow. {Aptenodytes forsteri}
Marine Iguanas (Amblyrhynchus cristatus) basking. Fernandina Island, Galapagos Islands.
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Lucas Bustamante / Marine Iguanas (Amblyrhynchus cristatus) basking. Fernandina Island, Galapagos Islands.
Marine iguana (Amblyrhynchus cristatus) group on rocks, Cape Douglas, Fernandina Island, Galapagos
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) group on rocks, Cape Douglas, Fernandina Island, Galapagos
Bengal tiger (Panthera tigris tigris) dominant male (T29) cooling off in a waterhole Kanha National Park, Central India. Camera trap image.
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Yashpal Rathore / Bengal tiger (Panthera tigris tigris) dominant male (T29) cooling off in a waterhole Kanha National Park, Central India. Camera trap image.
Red-bellied Blacksnake (Pseudechis porphyriacus) basking on rock, Lerderderg Gorge, Victoria, Australia, February.
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Robert Valentic / Red-bellied Blacksnake (Pseudechis porphyriacus) basking on rock, Lerderderg Gorge, Victoria, Australia, February.
Emperor penguin (Aptenodytes forsteri) colony with with creche of huddling chicks, Atka Bay, Queen Maud Land, Antarctica. October.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) colony with with creche of huddling chicks, Atka Bay, Queen Maud Land, Antarctica. October.
Marine iguana (Amblyrhynchus cristatus) basking on volcanic rock at coast. Isabela Island, Galapagos.
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Nick Hawkins / Marine iguana (Amblyrhynchus cristatus) basking on volcanic rock at coast. Isabela Island, Galapagos.
Marine iguana (Amblyrhynchus cristatus) group on rock in the waves, Cape Hammond, Fernandina Island, Galapagos
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) group on rock in the waves, Cape Hammond, Fernandina Island, Galapagos
Honey bees (Apis mellifera) swarming on an old gas tank and establishing a new nest site within, with some individuals beating their wings to create air circulation, Southern California, USA, February...
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John Chan / Honey bees (Apis mellifera) swarming on an old gas tank and establishing a new nest site within, with some individuals beating their wings to create air circulation, Southern California, USA, February...
Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.
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Jeff Foott / Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.
Bengal tiger (Panthera tigris) female 'T19 Krishna' with juvenile in water, Ranthambhore, India
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Andy Rouse / Bengal tiger (Panthera tigris) female 'T19 Krishna' with juvenile in water, Ranthambhore, India
Blackcap (Sylvia atricapilla) female and two males huddling together for warmth  while sleeping, Finland, May.
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Jussi Murtosaari / Blackcap (Sylvia atricapilla) female and two males huddling together for warmth while sleeping, Finland, May.
Marine iguana (Amblyrhynchus cristatus) two on beach, Santa Cruz Island, Galapagos.
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Tui De Roy / Marine iguana (Amblyrhynchus cristatus) two on beach, Santa Cruz Island, Galapagos.
Close-up of a Black browed albatross (Thalassarche melanophris) preening its chick, chick looks up panting, thermoregulating, West Point Island, Falkland Islands.
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Frederique Olivier / Close-up of a Black browed albatross (Thalassarche melanophris) preening its chick, chick looks up panting, thermoregulating, West Point Island, Falkland Islands.
King penguin (Aptenodytes patagonicus) standing on its heels on a rock to keep its feet warm, Salisbury Plain, South Georgia.
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Peter Bassett / King penguin (Aptenodytes patagonicus) standing on its heels on a rock to keep its feet warm, Salisbury Plain, South Georgia.
Group of gravid female Timber rattlesnakes (Crotalus horridus) basking before giving birth, Pennsylvania, USA, July.
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John Cancalosi / Group of gravid female Timber rattlesnakes (Crotalus horridus) basking before giving birth, Pennsylvania, USA, July.
European hornet (Vespa crabro) fanning nest with wings to regulate the temperature, Germany, September.
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Dietmar Nill / European hornet (Vespa crabro) fanning nest with wings to regulate the temperature, Germany, September.
Japanese macaque being groomed in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
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Ingo Arndt / Japanese macaque being groomed in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
Japanese macaques with young in hot spring {Macaca fuscata} Joshin-etsu NP, Japan
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Ingo Arndt / Japanese macaques with young in hot spring {Macaca fuscata} Joshin-etsu NP, Japan
Japanese macaque warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
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Ingo Arndt / Japanese macaque warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
Japanese macaque warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
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Ingo Arndt / Japanese macaque warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
Japanese macaques warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
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Ingo Arndt / Japanese macaques warming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan
Desert Chameleon {Chamaeleo namaquensis} walking on hot sand, Namibia.
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Ingo Arndt / Desert Chameleon {Chamaeleo namaquensis} walking on hot sand, Namibia.
European Dipper (Cinclus cinclus) on ice next to stream,  winter, Finland. February.
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Jussi Murtosaari / European Dipper (Cinclus cinclus) on ice next to stream, winter, Finland. February.
Marine iguana (Amblyrhynchus cristatus) resting on log in sunlight, Fernandina Island, Galapagos, April.
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Roy Mangersnes / Marine iguana (Amblyrhynchus cristatus) resting on log in sunlight, Fernandina Island, Galapagos, April.
Marine iguanas (Amblyrhynchus cristatus) basking on rock next to skeleton of one which starved to death. Unusually warm El Nino waters have killed a lot of the algae which is the food for these iguana...
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Roy Mangersnes / Marine iguanas (Amblyrhynchus cristatus) basking on rock next to skeleton of one which starved to death. Unusually warm El Nino waters have killed a lot of the algae which is the food for these iguana...
Coastal scene on Fernandina Island, with small group of Marine iguanas (Amblyrhynchus cristatus). Galapagos. April 2016. Normally there would be a much larger group but El Nino weather has killed off...
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Roy Mangersnes / Coastal scene on Fernandina Island, with small group of Marine iguanas (Amblyrhynchus cristatus). Galapagos. April 2016. Normally there would be a much larger group but El Nino weather has killed off...
Snowy Owl (Bubo scandiacus) fluffing feathers, this image was taken during a massive increase in the range and population of snowy owls. Boundary Bay, Canada. March.
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Gerrit Vyn / Snowy Owl (Bubo scandiacus) fluffing feathers, this image was taken during a massive increase in the range and population of snowy owls. Boundary Bay, Canada. March.
Junglefowl (Gallus gallus) male, Kaziranga National Park, Assam, India, March.
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Tony Heald / Junglefowl (Gallus gallus) male, Kaziranga National Park, Assam, India, March.
African elephants (Loxodonta africana) wallowing at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.
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Anup Shah / African elephants (Loxodonta africana) wallowing at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.
Adder (Vipera berus) basking amongst bracken fronds. Peak District National Park, Derbyshire, UK. April.
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Alex Hyde / Adder (Vipera berus) basking amongst bracken fronds. Peak District National Park, Derbyshire, UK. April.
Mourning Dove (Zenaida macroura) perched on branch in snow, Acadia National Park, Maine, USA, February.
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George Sanker / Mourning Dove (Zenaida macroura) perched on branch in snow, Acadia National Park, Maine, USA, February.
Yacare Caiman (Caiman yacare) gaping to regulate its body temperature, with attendant hoverflies, the Paraguay River, Taiama Reserve, western Pantanal, Brazil, South America.
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Nick Garbutt / Yacare Caiman (Caiman yacare) gaping to regulate its body temperature, with attendant hoverflies, the Paraguay River, Taiama Reserve, western Pantanal, Brazil, South America.
Two male Thomson's gazelles (Eudorcas thomsonii) fighting, Masai-Mara game reserve, Kenya.
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Denis-Huot / Two male Thomson's gazelles (Eudorcas thomsonii) fighting, Masai-Mara game reserve, Kenya.
Griffon vulture (Gyps fulvus) with wings spread, Spain, December
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Markus Varesvuo / Griffon vulture (Gyps fulvus) with wings spread, Spain, December
Bengal Tiger (Panthera tigris tigris) male 'Romeo T6' cooling off in waterhole during hot summer. Ranthambore National Park, India.
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Andy Rouse / Bengal Tiger (Panthera tigris tigris) male 'Romeo T6' cooling off in waterhole during hot summer. Ranthambore National Park, India.
Baird's tapir (Tapirus bairdii) entering a pool of water and wallowing, footage taken at night using thermal camera technology, Santa Rosa National Park, Costa Rica.
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Ammonite / Baird's tapir (Tapirus bairdii) entering a pool of water and wallowing, footage taken at night using thermal camera technology, Santa Rosa National Park, Costa Rica.
Family of Sri Lankan elephant (Elephas maximus maximus) drinking at waterhole, footage taken at night using thermal camera technology, showing cooling thermoregulatory properties of ears, Yala Nationa...
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Ammonite / Family of Sri Lankan elephant (Elephas maximus maximus) drinking at waterhole, footage taken at night using thermal camera technology, showing cooling thermoregulatory properties of ears, Yala Nationa...
Small group of African forest elephants (Loxodonta africana cuclotis) running into forest clearing, trumpeting to dominant male feeding and cooling down in a mineral pool, Dzanga Bai, Dzanga-Ndoki Nat...
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Jabruson Motion / Small group of African forest elephants (Loxodonta africana cuclotis) running into forest clearing, trumpeting to dominant male feeding and cooling down in a mineral pool, Dzanga Bai, Dzanga-Ndoki Nat...
Close-up of a Buff-tailed bumble bee (Bombus terrestris) inside nest, nest building and fanning wings to keep the nest at the correct temperature, France, May.
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Ammonite / Close-up of a Buff-tailed bumble bee (Bombus terrestris) inside nest, nest building and fanning wings to keep the nest at the correct temperature, France, May.
Bengal Tiger (Panthera tigris tigris) female 'Noor T39' with cubs in water. Ranthambore National Park, India.
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Andy Rouse / Bengal Tiger (Panthera tigris tigris) female 'Noor T39' with cubs in water. Ranthambore National Park, India.
Yacare Caiman (Caiman yacare) with mouth open to keep cool, Pantanal, Brazil.
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Angelo Gandolfi / Yacare Caiman (Caiman yacare) with mouth open to keep cool, Pantanal, Brazil.
Yellow Labrador and in wheat field, Norfolk, August
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Ernie Janes / Yellow Labrador and in wheat field, Norfolk, August
Boat full of people watching Common Seals (Phoca vitulina) on sand bank at Blakeney Point, Norfolk, August 2013.
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Ernie Janes / Boat full of people watching Common Seals (Phoca vitulina) on sand bank at Blakeney Point, Norfolk, August 2013.
African elephants (Loxodonta africana) wallowing in a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.
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Anup Shah / African elephants (Loxodonta africana) wallowing in a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.
Golden Retriever, male in straw
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Petra Wegner,Petra Wegner / Golden Retriever, male in straw
Japanese Macaque (Macaca fuscata) male and female huddle together during a light snowfall in Jigokudani Japan, January
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Diane McAllister,Diane McAllister / Japanese Macaque (Macaca fuscata) male and female huddle together during a light snowfall in Jigokudani Japan, January
Japanese Macaque (Macaca fuscata) with icy strands of fur on its head, Jigokudani, Japan, February
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Diane McAllister,Diane McAllister / Japanese Macaque (Macaca fuscata) with icy strands of fur on its head, Jigokudani, Japan, February
Pine Grosbeak (Pinicola enucleator) male feeding on berries with traffic light behind, Oulu, Finland, December
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Markus Varesvuo / Pine Grosbeak (Pinicola enucleator) male feeding on berries with traffic light behind, Oulu, Finland, December
Emperor Penguins, (Aptenodytes forsteri), young huddling together to form a creche to keep warm, during storm, Dawson Lambton Glacier, Weddell Sea, Antarctica
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David Tipling / Emperor Penguins, (Aptenodytes forsteri), young huddling together to form a creche to keep warm, during storm, Dawson Lambton Glacier, Weddell Sea, Antarctica
King Penguins (Aptenodytes patagonicus) group huddled together in blizzard, Right Whale Bay, South Georgia, November
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David Tipling / King Penguins (Aptenodytes patagonicus) group huddled together in blizzard, Right Whale Bay, South Georgia, November
King Penguins (Aptenodytes patagonicus) group huddled together in storm, Right Whale Bay, South Georgia, November
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David Tipling / King Penguins (Aptenodytes patagonicus) group huddled together in storm, Right Whale Bay, South Georgia, November
Volcan Alcedo giant tortoises (Chelonoidis nigra vandenburghi) wallowing in rain pools on caldera floor, possibly for thermoregulation or detering parasites, with sulphur fumaroles in background, Alce...
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Tui De Roy / Volcan Alcedo giant tortoises (Chelonoidis nigra vandenburghi) wallowing in rain pools on caldera floor, possibly for thermoregulation or detering parasites, with sulphur fumaroles in background, Alce...
Wood ant (Formica rufa) basking to absorb heat from the sun which is brought back to the nest when they return, Europe
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Martin Dohrn / Wood ant (Formica rufa) basking to absorb heat from the sun which is brought back to the nest when they return, Europe
Polar bear (Ursus arctos maritimus) mother rolling in snow watched by new year cubs, 6 months old, Svalbard, Arctic
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Andy Rouse / Polar bear (Ursus arctos maritimus) mother rolling in snow watched by new year cubs, 6 months old, Svalbard, Arctic
Male Southern hawker dragonfly (Aeshna cyanea) sunning itself on Rose flower (Rosa sp.) in garden in autumn, Wiltshire, England, UK, October . Property released. Did you know? The Latin name for this...
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Nick Upton / 2020VISION / Male Southern hawker dragonfly (Aeshna cyanea) sunning itself on Rose flower (Rosa sp.) in garden in autumn, Wiltshire, England, UK, October . Property released. Did you know? The Latin name for this...
Robin (Erithacus rubecula) adult perched in winter with feather fluffed up, Scotland, UK, December
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Mark Hamblin / 2020VISION / Robin (Erithacus rubecula) adult perched in winter with feather fluffed up, Scotland, UK, December
White-headed Mousebirds (Colius leucocephalus) clustered together in tree to keep warm in the Upper Mara, Masai Mara Game Reserve, Kenya
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Mary McDonald / White-headed Mousebirds (Colius leucocephalus) clustered together in tree to keep warm in the Upper Mara, Masai Mara Game Reserve, Kenya
Young Florida manatee (Trichechus manatus latirostrus) stays warm in a freshwater spring in winter, at dawn. Three Sisters Spring, Crystal River, Florida, USA. January
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Alex Mustard / Young Florida manatee (Trichechus manatus latirostrus) stays warm in a freshwater spring in winter, at dawn. Three Sisters Spring, Crystal River, Florida, USA. January
Robin (Erithacus rubecula) perched on snow-covered fence, feather fluffed up for warmth, Carmarthenshire, Wales, UK
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Dave Bevan / Robin (Erithacus rubecula) perched on snow-covered fence, feather fluffed up for warmth, Carmarthenshire, Wales, UK
Cheetah (Acinonyx jubatus) female with cub lying in shade under her body, Masai Mara, Kenya
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Philip Dalton / Cheetah (Acinonyx jubatus) female with cub lying in shade under her body, Masai Mara, Kenya
Dunlin {Calidris alpina} sunbathing / warming itself on heated river gravel, Glen Kingie, West-Inverness, Scotland, UK
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Roger Powell / Dunlin {Calidris alpina} sunbathing / warming itself on heated river gravel, Glen Kingie, West-Inverness, Scotland, UK
Male Western green lizard (Lacerta bilineata) warming up, San Marino, May 2009. WWE OUTDOOR EXHIBITION.
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Wild Wonders of Europe / Möllers / Male Western green lizard (Lacerta bilineata) warming up, San Marino, May 2009. WWE OUTDOOR EXHIBITION.
Swallowtail butterfly (Papilio machaon) sunning on a riverbank in Arkhyz section of the Teberdinsky biosphere reserve, Caucasus, Russia, July 2008
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Wild Wonders of Europe / Schandy / Swallowtail butterfly (Papilio machaon) sunning on a riverbank in Arkhyz section of the Teberdinsky biosphere reserve, Caucasus, Russia, July 2008
Swallowtail butterflies (Papilio machaon) sunning on a riverbank in Arkhyz section of the Teberdinsky biosphere reserve, Caucasus, Russia, July 2008
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Wild Wonders of Europe / Schandy / Swallowtail butterflies (Papilio machaon) sunning on a riverbank in Arkhyz section of the Teberdinsky biosphere reserve, Caucasus, Russia, July 2008
Galapagos giant tortoise {Geochelone elephantopus} cooling in water, Santa Cruz Island, Galapagos, January
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Juan Carlos Munoz / Galapagos giant tortoise {Geochelone elephantopus} cooling in water, Santa Cruz Island, Galapagos, January
Japanese macaque (Macaca fuscata) eight months old sitting in front of a pool created by a hot spring  being used by females and young for bathing to keep warm, Jigokudani, Joshinetsu Kogen NP, Nagano...
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Yukihiro Fukuda / Japanese macaque (Macaca fuscata) eight months old sitting in front of a pool created by a hot spring being used by females and young for bathing to keep warm, Jigokudani, Joshinetsu Kogen NP, Nagano...
Japanese macaques (Macaca fuscata) spread out sitting on small rocks, Shodoshima, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) spread out sitting on small rocks, Shodoshima, Japan
Japanese macaques (Macaca fuscata) faces looking up, huddling together for warmth on a cold day, Shodoshima, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) faces looking up, huddling together for warmth on a cold day, Shodoshima, Japan
Japanese macaques (Macaca fuscata) huddled together sleeping in a tree at night, full moon, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) huddled together sleeping in a tree at night, full moon, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
Female Japanese macaques (Macaca fuscata) in a hot spring to keep warm, only females and young bathe, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
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Yukihiro Fukuda / Female Japanese macaques (Macaca fuscata) in a hot spring to keep warm, only females and young bathe, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
Japanese macaque (Macaca fuscata) holding young while bathing in hot spring to keep warm, only females and young bathe, winter, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque (Macaca fuscata) holding young while bathing in hot spring to keep warm, only females and young bathe, winter, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
Japanese macaque (Macaca fuscata) family huddled together for warmth on a cold day, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque (Macaca fuscata) family huddled together for warmth on a cold day, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
Two groups of Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
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Yukihiro Fukuda / Two groups of Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) huddling together for warmth on a cold day, Shodoshima, Japan
Japanese macaques (Macaca fuscata) warming up by bathing in a hot spring during snowfall, only females and young bathe, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
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Yukihiro Fukuda / Japanese macaques (Macaca fuscata) warming up by bathing in a hot spring during snowfall, only females and young bathe, Jigokudani, Joshinetsu Kogen NP, Nagano, Japan
Alpine marmot (Marmota marmota) warming up on a rock, Hohe Tauern National Park, Austria, July 2008
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Wild Wonders of Europe / Lesniewski / Alpine marmot (Marmota marmota) warming up on a rock, Hohe Tauern National Park, Austria, July 2008
African elephant (Loxodonta africana) rear view of large ear showing veins for efficient heat loss, Savute, Botswana  (non-ex)
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Andy Rouse / African elephant (Loxodonta africana) rear view of large ear showing veins for efficient heat loss, Savute, Botswana (non-ex)
Ring-tailed Lemur (Lemur catta) 'sunning' in the early morning light to warm themselves. Berenty Private Reserve, Madagascar. Oct 2008.
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Anup Shah / Ring-tailed Lemur (Lemur catta) 'sunning' in the early morning light to warm themselves. Berenty Private Reserve, Madagascar. Oct 2008.
Ring-tailed lemur (Lemur catta) group sitting on ground, sunning in morning sun, Berenty private reserve, south Madagascar
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Inaki Relanzon / Ring-tailed lemur (Lemur catta) group sitting on ground, sunning in morning sun, Berenty private reserve, south Madagascar
Japanese macaque / Snow monkey {Macaca fuscata} monkey basking in the winter sunshine, Jigokudani, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} monkey basking in the winter sunshine, Jigokudani, Nagano, Japan
Japanese macaque / Snow monkey {Macaca fuscata} 7-month-old monkey bathing in hot springs, examining its hands, water at 40 degrees, Jigokudani, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} 7-month-old monkey bathing in hot springs, examining its hands, water at 40 degrees, Jigokudani, Nagano, Japan
Japanese macaque / Snow monkey {Macaca fuscata} two monkeys huddle together to keep warm, Jigokudani, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} two monkeys huddle together to keep warm, Jigokudani, Nagano, Japan
Japanese macaque / Snow monkey {Macaca fuscata} adult female bathing in hot springs tapping the water surface with hand in play, water at 40 degrees, Jigokudani, Nagano, Japan
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Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} adult female bathing in hot springs tapping the water surface with hand in play, water at 40 degrees, Jigokudani, Nagano, Japan
Japanese macaque / Snow monkey {Macaca fuscata} group of monkeys bathing in hot springs, water at 40 degrees, Jigokudani, Nagano, Japan
01204411
Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} group of monkeys bathing in hot springs, water at 40 degrees, Jigokudani, Nagano, Japan
Emperor penguin {Aptenodytes forsteri} chicks huddled together for warmth during snow storm, Antarctica
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Frederique Olivier / Emperor penguin {Aptenodytes forsteri} chicks huddled together for warmth during snow storm, Antarctica
Steller's sea eagle {Haliaeetus pelagicus} sunning on tree top, Kuril Lake, Kamchatka, Far East Russia
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Igor Shpilenok / Steller's sea eagle {Haliaeetus pelagicus} sunning on tree top, Kuril Lake, Kamchatka, Far East Russia
Kamchatka brown bear (Ursus arctos beringianus)  enjoys hot steam from a geyser in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia
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Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) enjoys hot steam from a geyser in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia
Isabelline wheatear {Oenanthe isabellina} panting in heat, Khatmat Milahah, Oman.
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Hanne & Jens Eriksen / Isabelline wheatear {Oenanthe isabellina} panting in heat, Khatmat Milahah, Oman.
Family of young Rock hyrax {Procavia capensis} sunning on rock, Serengeti NP, Tanzania
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Anup Shah / Family of young Rock hyrax {Procavia capensis} sunning on rock, Serengeti NP, Tanzania
Common / House sparrow {Passer domesticus} male perching on stone with feathers ruffled, Quintana de la Serena, Badajoz, Extremadura, Spain April
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Jose B. Ruiz / Common / House sparrow {Passer domesticus} male perching on stone with feathers ruffled, Quintana de la Serena, Badajoz, Extremadura, Spain April
Hoatzins basking in sun {Ophisthocomus hoazin} Amazonas, Brazil
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Luiz Claudio Marigo / Hoatzins basking in sun {Ophisthocomus hoazin} Amazonas, Brazil
RF- Adult male Rajah Brooke's Birdwing butterfly (Trogonoptera brookiana) basking in pool of sunlight. Dipterocarp rainforest, Danum Valley, Sabah, Borneo. (This image may be licensed either as rights...
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Nick Garbutt / RF- Adult male Rajah Brooke's Birdwing butterfly (Trogonoptera brookiana) basking in pool of sunlight. Dipterocarp rainforest, Danum Valley, Sabah, Borneo. (This image may be licensed either as rights...
Rhesus macaques {Macaca mulatta} huddled on branch for warmth at dawn, Keoladeo Ghana NP, Rajasthan, India
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Jean-Pierre Zwaenepoel / Rhesus macaques {Macaca mulatta} huddled on branch for warmth at dawn, Keoladeo Ghana NP, Rajasthan, India