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Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
01742036
Denis-Huot / Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
01742035
Denis-Huot / Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
01742034
Denis-Huot / Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
01742033
Denis-Huot / Two Impala (Aepyceros melampus) males fighting on dusty ground, Amboseli National Park, Kenya.
A wild red roan stallion rearing up as a rival approaches, Salt Wells Creek, Wyoming, USA. June.
01741990
Carol Walker / A wild red roan stallion rearing up as a rival approaches, Salt Wells Creek, Wyoming, USA. June.
Two wild stallions fighting, a bay roan and a black stallion, Salt Wells Creek, Wyoming, USA. June.
01741980
Carol Walker / Two wild stallions fighting, a bay roan and a black stallion, Salt Wells Creek, Wyoming, USA. June.
A wild red roan stallion rearing up as another stallion approaches, Salt Wells Creek, Wyoming, USA. May.
01741979
Carol Walker / A wild red roan stallion rearing up as another stallion approaches, Salt Wells Creek, Wyoming, USA. May.
Two Red Sea goatfish (Parupeneus forsskali) wrapping their barbels around each other, fighting, Sharm El Shiekh, Sinai, Egypt. Red Sea.
01741956
Alex Mustard / Two Red Sea goatfish (Parupeneus forsskali) wrapping their barbels around each other, fighting, Sharm El Shiekh, Sinai, Egypt. Red Sea.
Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.
01731574
Bernard Castelein / Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.
Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.
01731573
Bernard Castelein / Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.
Nursery web spider (Pisaura mirabilis) female, resting on dew covered wrapping cover of its breeding ball, Klein Schietveld, Brasschaat, Belgium. July.
01731566
Bernard Castelein / Nursery web spider (Pisaura mirabilis) female, resting on dew covered wrapping cover of its breeding ball, Klein Schietveld, Brasschaat, Belgium. July.
Monocled cobra (Naja kaouthia) albino raised and flaring its hood in threat display, Amphibian Foundation, Atlanta. Captive.
01739329
Joel Sartore / Photo Ark / Monocled cobra (Naja kaouthia) albino raised and flaring its hood in threat display, Amphibian Foundation, Atlanta. Captive.
Lovely poison-arrow frog (Phyllobates lugubris) sitting on mud with tadpoles on back, Escudo de Veraguas island, Panama.
01740107
Emanuele Biggi / Lovely poison-arrow frog (Phyllobates lugubris) sitting on mud with tadpoles on back, Escudo de Veraguas island, Panama.
Imperial cave salamander (Speleomantes imperialis) hiding in hole in rock, Sarrabus, Sardinia, Italy.
01740097
Emanuele Biggi / Imperial cave salamander (Speleomantes imperialis) hiding in hole in rock, Sarrabus, Sardinia, Italy.
Mountain hare (Lepus timidus) sub-adult, hiding among long grass, Peak District National Park, England, UK. August.
01740029
Andrew Parkinson / Mountain hare (Lepus timidus) sub-adult, hiding among long grass, Peak District National Park, England, UK. August.
Mountain hare (Lepus timidus) resting in snow hole close to a snow covered mountain river, Cairngorms National Park, Scotland, UK. February.
01740028
Andrew Parkinson / Mountain hare (Lepus timidus) resting in snow hole close to a snow covered mountain river, Cairngorms National Park, Scotland, UK. February.
Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
01739972
Andrew Parkinson / Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
01739970
Andrew Parkinson / Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
01739969
Andrew Parkinson / Mountain hares (Lepus timidus) pair, leaping high into the air in a display of boxing behaviour during courtship, Cairngorms National Park, Scotland, UK. February.
Two Southern elephant seals (Mirounga leonina) juvenile males, sparring on the shore, Macquarie Island, Australian Sub Antarctic Island.
01735459
Russell Laman / Two Southern elephant seals (Mirounga leonina) juvenile males, sparring on the shore, Macquarie Island, Australian Sub Antarctic Island.
Two Yellow-eyed penguins (Megadyptes antipodes) squabbling, Enderby Island, Auckland Islands Group, New Zealand Sub Antarctic Islands. Endangered.
01735445
Russell Laman / Two Yellow-eyed penguins (Megadyptes antipodes) squabbling, Enderby Island, Auckland Islands Group, New Zealand Sub Antarctic Islands. Endangered.
Two Yellow-eyed penguins (Megadyptes antipodes) squabbling, Enderby Island, Auckland Islands Group, New Zealand Sub Antarctic Islands. Endangered.
01735444
Russell Laman / Two Yellow-eyed penguins (Megadyptes antipodes) squabbling, Enderby Island, Auckland Islands Group, New Zealand Sub Antarctic Islands. Endangered.
Two Buller's albatrosses (Thalassarche bulleri) fighting over a fish, Snares Island, New Zealand Sub Antarctic Islands, southern Pacific Ocean.
01735408
Russell Laman / Two Buller's albatrosses (Thalassarche bulleri) fighting over a fish, Snares Island, New Zealand Sub Antarctic Islands, southern Pacific Ocean.
Marsh frog (Pelophylax ridibundus) in pond vocalising, courtship display, near Bratsigovo, Bulgaria. May.
01734269
Guy Edwardes / Marsh frog (Pelophylax ridibundus) in pond vocalising, courtship display, near Bratsigovo, Bulgaria. May.
Marsh frog (Pelophylax ridibundus) in pond vocalising, courtship display, near Bratsigovo, Bulgaria. May.
01734268
Guy Edwardes / Marsh frog (Pelophylax ridibundus) in pond vocalising, courtship display, near Bratsigovo, Bulgaria. May.
Sulphur-crested cockatoo (Cacatua galerita) squawking at Grey-headed flying-fox (Pteropus poliocephalus) colony roosting in tree, Myuna Wetlands, Doveton, Victoria, Australia.
01734082
Doug Gimesy / Sulphur-crested cockatoo (Cacatua galerita) squawking at Grey-headed flying-fox (Pteropus poliocephalus) colony roosting in tree, Myuna Wetlands, Doveton, Victoria, Australia.
Two Floreana giant tortoises hybrid descendant (Chelonoidis elephantopus) in confrontation, National Park Breeding Center, Santa Cruz Island, Galapagos Islands. Captive.
01740469
Tui De Roy / Two Floreana giant tortoises hybrid descendant (Chelonoidis elephantopus) in confrontation, National Park Breeding Center, Santa Cruz Island, Galapagos Islands. Captive.
Two Floreana giant tortoises hybrid descendant (Chelonoidis elephantopus) in confrontation, National Park Breeding Center, Santa Cruz Island, Galapagos Islands. Captive.
01740468
Tui De Roy / Two Floreana giant tortoises hybrid descendant (Chelonoidis elephantopus) in confrontation, National Park Breeding Center, Santa Cruz Island, Galapagos Islands. Captive.
Wool carder bee (Anthidium manicatum) male, hovering near a Lamb's ear (Stachys byzantina) flower, patrolling its territory in a garden flowerbed, Wiltshire, UK. July.
01740581
Nick Upton / Wool carder bee (Anthidium manicatum) male, hovering near a Lamb's ear (Stachys byzantina) flower, patrolling its territory in a garden flowerbed, Wiltshire, UK. July.
Wood-carving leafcutter bee (Megachile ligniseca) female, attacking another bee she is competing with for a nest burrow within an insect hotel, Wiltshire garden, UK. July.
01740575
Nick Upton / Wood-carving leafcutter bee (Megachile ligniseca) female, attacking another bee she is competing with for a nest burrow within an insect hotel, Wiltshire garden, UK. July.
Wood-carving leafcutter bee (Megachile ligniseca) female, attacking another bee she is competing with for a nest burrow within an insect hotel, Wiltshire garden, UK. July.
01740573
Nick Upton / Wood-carving leafcutter bee (Megachile ligniseca) female, attacking another bee she is competing with for a nest burrow within an insect hotel, Wiltshire garden, UK. July.
Wood-carving leafcutter bee (Megachile ligniseca) female, using her large jaws to repel a male as it approaches her nest burrow within an insect hotel, Wiltshire garden, UK. August.
01740569
Nick Upton / Wood-carving leafcutter bee (Megachile ligniseca) female, using her large jaws to repel a male as it approaches her nest burrow within an insect hotel, Wiltshire garden, UK. August.
Wood-carving leafcutter bee (Megachile ligniseca) female, using her large jaws to repel a male hovering close to her nest burrow within an insect hotel, Wiltshire garden, UK. July.
01740568
Nick Upton / Wood-carving leafcutter bee (Megachile ligniseca) female, using her large jaws to repel a male hovering close to her nest burrow within an insect hotel, Wiltshire garden, UK. July.
Mason wasp / Potter wasp (Ancistrocerus sp.) female, at entrance to nest in an insect hotel with green caterpillar prey for its larvae to feed on, Wiltshire garden, UK. July.
01740546
Nick Upton / Mason wasp / Potter wasp (Ancistrocerus sp.) female, at entrance to nest in an insect hotel with green caterpillar prey for its larvae to feed on, Wiltshire garden, UK. July.
Mason wasp / Potter wasp (Ancistrocerus sp.) female, at entrance to nest hole in an insect hotel with a small beetle grub for its larvae to feed on, Wiltshire garden, UK. July.
01740545
Nick Upton / Mason wasp / Potter wasp (Ancistrocerus sp.) female, at entrance to nest hole in an insect hotel with a small beetle grub for its larvae to feed on, Wiltshire garden, UK. July.
Tawny owl (Strix aluco) chick perched at entrance to garden nest box with Cockchafer (Melolontha melolontha) prey in beak, just delivered by a parent at dusk, Wiltshire, UK. May.
01740506
Nick Upton / Tawny owl (Strix aluco) chick perched at entrance to garden nest box with Cockchafer (Melolontha melolontha) prey in beak, just delivered by a parent at dusk, Wiltshire, UK. May.
Tawny owl (Strix aluco) chick perched at entrance to garden nest box, swallowing Wood mouse (Apodemus sylvaticus) prey, just delivered by a parent, Wiltshire, UK, June.
01740505
Nick Upton / Tawny owl (Strix aluco) chick perched at entrance to garden nest box, swallowing Wood mouse (Apodemus sylvaticus) prey, just delivered by a parent, Wiltshire, UK, June.
Tawny owl (Strix aluco) chick perched at entrance to garden nest box with Wood mouse (Apodemus sylvaticus) prey in beak, just delivered by a parent, Wiltshire, UK. June.
01740504
Nick Upton / Tawny owl (Strix aluco) chick perched at entrance to garden nest box with Wood mouse (Apodemus sylvaticus) prey in beak, just delivered by a parent, Wiltshire, UK. June.
Tawny owl (Strix aluco) flying towards garden nest box at night carrying Wood mouse (Apodemus sylvaticus) prey in beak to feed waiting chick, Wiltshire, UK. June.
01740502
Nick Upton / Tawny owl (Strix aluco) flying towards garden nest box at night carrying Wood mouse (Apodemus sylvaticus) prey in beak to feed waiting chick, Wiltshire, UK. June.
Eurasian crane (Grus grus) offering aquatic invertebrate prey it has just caught to chick, standing in a marshland pool, Slimbridge, Gloucestershire, UK. June.
01740488
Nick Upton / Eurasian crane (Grus grus) offering aquatic invertebrate prey it has just caught to chick, standing in a marshland pool, Slimbridge, Gloucestershire, UK. June.
White-throated dipper (Cinclus cinclus) engaging in courtship display as another dipper perches on rock and dives beneath water. Mallards swim in river behind, Lucerne, Switzerland, January.
01734323
Roman Willi / White-throated dipper (Cinclus cinclus) engaging in courtship display as another dipper perches on rock and dives beneath water. Mallards swim in river behind, Lucerne, Switzerland, January.
Blue-crowned racket-tail parrots (Prioniturus discurus whiteheadi) pair, courtship display, Philippines. Captive.
01737045
Roland Seitre / Blue-crowned racket-tail parrots (Prioniturus discurus whiteheadi) pair, courtship display, Philippines. Captive.
Blue-crowned racket-tail parrots (Prioniturus discurus whiteheadi) pair, courtship display, Philippines. Captive.
01737044
Roland Seitre / Blue-crowned racket-tail parrots (Prioniturus discurus whiteheadi) pair, courtship display, Philippines. Captive.
European roller (Coracias garrulus) perched at entrance to nest hole carrying food for chicks in beak, Hungary. June.
01736196
Hermann Brehm / European roller (Coracias garrulus) perched at entrance to nest hole carrying food for chicks in beak, Hungary. June.
Gila woodpecker (Melanerpes uropygialis) perched on a cactus, collecting food for chicks, near Hermosillo, Sonora, Mexico.
01734005
Claudio Contreras / Gila woodpecker (Melanerpes uropygialis) perched on a cactus, collecting food for chicks, near Hermosillo, Sonora, Mexico.
White-collared manakin (Manacus candei) male performing dancing display. The bird lands on a branch repeatedly while it enters and leaves frame. Alajuela, Costa Rica. January.
01737452
Daniel Mideros / White-collared manakin (Manacus candei) male performing dancing display. The bird lands on a branch repeatedly while it enters and leaves frame. Alajuela, Costa Rica. January.
Puma / Cougar (Puma concolor) mother grooming her juvenile, Torres del Paine National Park, Chile. June.
01737449
Daniel Mideros / Puma / Cougar (Puma concolor) mother grooming her juvenile, Torres del Paine National Park, Chile. June.
Black-and-chestnut eagle (Spizaetus isidori) adult leaving its nest with chick in it. Then another adult returns to the nest with a branch in its beak. Ecuador. June. Endangered.
01737444
Daniel Mideros / Black-and-chestnut eagle (Spizaetus isidori) adult leaving its nest with chick in it. Then another adult returns to the nest with a branch in its beak. Ecuador. June. Endangered.
White-collared manakin (Manacus candei) male displaying. The bird enters frame and lands on a branch. Then the animal looks around before it takes off and leaves the frame. Alajuela, Costa Rica. Janua...
01737453
Daniel Mideros / White-collared manakin (Manacus candei) male displaying. The bird enters frame and lands on a branch. Then the animal looks around before it takes off and leaves the frame. Alajuela, Costa Rica. Janua...
Mimic octopus (Thaumoctopus mimicus) burying itself in sand,  Bethelem III, Minahasa Lagoon, Manado, Sulawesi, Indonesia, Pacific Ocean.
01739568
Franco Banfi / Mimic octopus (Thaumoctopus mimicus) burying itself in sand, Bethelem III, Minahasa Lagoon, Manado, Sulawesi, Indonesia, Pacific Ocean.
Mimic octopus (Thaumoctopus mimicus) burying itself in sand, Bethelem III, Minahasa Lagoon, Manado, Sulawesi, Indonesia, Pacific Ocean.
01739567
Franco Banfi / Mimic octopus (Thaumoctopus mimicus) burying itself in sand, Bethelem III, Minahasa Lagoon, Manado, Sulawesi, Indonesia, Pacific Ocean.
Two Palm cockatoos (Probosciger aterrimus aterrimus) pair, perched on branch performing courtship display, Iron Range National Park, Lockhart River, Cape York, Queensland, Australia.
01736997
Roland Seitre / Two Palm cockatoos (Probosciger aterrimus aterrimus) pair, perched on branch performing courtship display, Iron Range National Park, Lockhart River, Cape York, Queensland, Australia.
Whiskered lorikeet (Oreopsittacus arfaki) perched on branch feeding chick, New Guinea. Captive.
01736995
Roland Seitre / Whiskered lorikeet (Oreopsittacus arfaki) perched on branch feeding chick, New Guinea. Captive.
Woodpigeon (Columba palumbus) flapping wings, displaying aggressive behaviour towards two Feral pigeons (Columba livia) in an urban garden, Greater Manchester, UK. April.
01732437
Terry Whittaker / Woodpigeon (Columba palumbus) flapping wings, displaying aggressive behaviour towards two Feral pigeons (Columba livia) in an urban garden, Greater Manchester, UK. April.
Common snipe (Gallinago gallinago) in flight, 'drumming display', Akranes, Iceland. June.
01732424
Terry Whittaker / Common snipe (Gallinago gallinago) in flight, 'drumming display', Akranes, Iceland. June.
Spotted hyena (Crocuta crocuta) clan feeding on dead young Eastern white-bearded wildebeest (Connochaetes taurinus) whilst defending it from White backed vultures (Gyps africanus) and Rupell's vulture...
01735907
Eric Baccega / Spotted hyena (Crocuta crocuta) clan feeding on dead young Eastern white-bearded wildebeest (Connochaetes taurinus) whilst defending it from White backed vultures (Gyps africanus) and Rupell's vulture...
Two Australian redclaw crayfish (Cherax quadricarinatus) males, fighting on riverbed, Adelaide River Hills, Northern Territory, Australia.
01735651
Etienne Littlefair / Two Australian redclaw crayfish (Cherax quadricarinatus) males, fighting on riverbed, Adelaide River Hills, Northern Territory, Australia.
Edward's bark scorpion (Centruroides edwardsii) female, carrying brood of hatchlings on her back, private collection. Captive, occurs in Central America.
01737092
Joel Sartore / Photo Ark / Edward's bark scorpion (Centruroides edwardsii) female, carrying brood of hatchlings on her back, private collection. Captive, occurs in Central America.
Little corellas (Cacatua sanguinea) pair, rolling on the ground, courtship display, Perth, Western Australia.
01736868
Roland Seitre / Little corellas (Cacatua sanguinea) pair, rolling on the ground, courtship display, Perth, Western Australia.
Two Little corellas (Cacatua sanguinea) fighting, Perth, Western Australia.
01736859
Roland Seitre / Two Little corellas (Cacatua sanguinea) fighting, Perth, Western Australia.
Two Little corellas (Cacatua sanguinea) standing on the ground, one displaying and spreading wings, Perth, Western Australia.
01736858
Roland Seitre / Two Little corellas (Cacatua sanguinea) standing on the ground, one displaying and spreading wings, Perth, Western Australia.
Little corella (Cacatua sanguinea) standing on the ground, displaying and spreading wings, Perth, Western Australia.
01736857
Roland Seitre / Little corella (Cacatua sanguinea) standing on the ground, displaying and spreading wings, Perth, Western Australia.
White cockatoo (Cacatua alba) perched in tree, displaying, Indonesia. Captive. Endangered.
01736844
Roland Seitre / White cockatoo (Cacatua alba) perched in tree, displaying, Indonesia. Captive. Endangered.
White cockatoo (Cacatua alba) walking along branch, displaying, Indonesia. Captive. Endangered.
01736843
Roland Seitre / White cockatoo (Cacatua alba) walking along branch, displaying, Indonesia. Captive. Endangered.
White cockatoo (Cacatua alba) perched on branch displaying, Indonesia. Captive. Endangered.
01736841
Roland Seitre / White cockatoo (Cacatua alba) perched on branch displaying, Indonesia. Captive. Endangered.
White cockatoo (Cacatua alba) displaying, portrait, Indonesia. Captive. Endangered.
01736839
Roland Seitre / White cockatoo (Cacatua alba) displaying, portrait, Indonesia. Captive. Endangered.
Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
01736838
Roland Seitre / Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
01736837
Roland Seitre / Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
01736836
Roland Seitre / Salmon-crested cockatoo (Cacatua moluccensis) displaying, portrait, France. Captive, occurs in Indonesia.
Blue-eyed cockatoo (Cacatua ophthalmica) calling and displaying, head portrait, Indonesia. Captive, occurs in Bismarck Archipelago.
01736833
Roland Seitre / Blue-eyed cockatoo (Cacatua ophthalmica) calling and displaying, head portrait, Indonesia. Captive, occurs in Bismarck Archipelago.
Blue-eyed cockatoo (Cacatua ophthalmica) calling and displaying, head portrait, Indonesia. Captive, occurs in Bismarck Archipelago.
01736832
Roland Seitre / Blue-eyed cockatoo (Cacatua ophthalmica) calling and displaying, head portrait, Indonesia. Captive, occurs in Bismarck Archipelago.
Blue-eyed cockatoo (Cacatua ophthalmica) perched on branch displaying, Indonesia. Captive, occurs in Bismarck Archipelago.
01736831
Roland Seitre / Blue-eyed cockatoo (Cacatua ophthalmica) perched on branch displaying, Indonesia. Captive, occurs in Bismarck Archipelago.
Blue-eyed cockatoo (Cacatua ophthalmica) perched on branch displaying, Indonesia. Captive, occurs in Bismarck Archipelago.
01736830
Roland Seitre / Blue-eyed cockatoo (Cacatua ophthalmica) perched on branch displaying, Indonesia. Captive, occurs in Bismarck Archipelago.
Sulphur-crested cockatoo (Cacatua galerita) perched at nest hole performing courtship display, Iron Range National Park, Cape York, Queensland, Australia.
01736820
Roland Seitre / Sulphur-crested cockatoo (Cacatua galerita) perched at nest hole performing courtship display, Iron Range National Park, Cape York, Queensland, Australia.
Tawny owl (Strix aluco) sleeping in nest hole, incubating eggs on nest, Ambleside, Lake District, Cumbria, UK. April.
01732660
Ashley Cooper / Tawny owl (Strix aluco) sleeping in nest hole, incubating eggs on nest, Ambleside, Lake District, Cumbria, UK. April.
Leatherback Sea Turtle (Dermochelys coriacea) female in defensive display, Kai Islands, Maluku Islands, Indonesia
00664288
Tui De Roy / Leatherback Sea Turtle (Dermochelys coriacea) female in defensive display, Kai Islands, Maluku Islands, Indonesia
Pelagic blanket octopus (Tremoctopus gracilis) female, swimming in open water, unfurling her display blanket membrane, off Anilao, Batangas, Philippines, Pacific Ocean. GDT's European Wildlife Ph...
01738189
Magnus Lundgren / Pelagic blanket octopus (Tremoctopus gracilis) female, swimming in open water, unfurling her display blanket membrane, off Anilao, Batangas, Philippines, Pacific Ocean. GDT's European Wildlife Ph...
Glass frog (Hyalinobatrachium viridissimum) male, camouflaged on leaf caring for eggs, Finca Sacmoc, Alta Verapaz, Guatemala.
01737566
Daniel Nunez / Glass frog (Hyalinobatrachium viridissimum) male, camouflaged on leaf caring for eggs, Finca Sacmoc, Alta Verapaz, Guatemala.
Common kingfisher (Alcedo atthis) diving from a perch and then returning with its prey, a tadpole. Then the bird bashes it against the branch to kill/stun it. Outside of the frame, a Eurasian sparrowh...
01732306
Andres M. Dominguez / Common kingfisher (Alcedo atthis) diving from a perch and then returning with its prey, a tadpole. Then the bird bashes it against the branch to kill/stun it. Outside of the frame, a Eurasian sparrowh...
Great hornbill (Buceros bicornis) male entering frame and landing on edge of nest hole. Then the animal regurgitates Fig fruit and feeds it to the female sitting on the nest, inside the tree. Maharash...
01733080
Vishal Jadhav / Great hornbill (Buceros bicornis) male entering frame and landing on edge of nest hole. Then the animal regurgitates Fig fruit and feeds it to the female sitting on the nest, inside the tree. Maharash...
Pileated woodpecker (Dryocopus pileatus) male entering frame and landing on tree with nest hole. Then the bird feeds one of the chicks which is begging for food. Florida. April.
01734322
Harry Collins / Pileated woodpecker (Dryocopus pileatus) male entering frame and landing on tree with nest hole. Then the bird feeds one of the chicks which is begging for food. Florida. April.
Pileated woodpecker (Dryocopus pileatus) male regurgitates food and then feeds one of his chicks at the nest hole, Florida. April.
01734321
Harry Collins / Pileated woodpecker (Dryocopus pileatus) male regurgitates food and then feeds one of his chicks at the nest hole, Florida. April.
Pileated woodpecker (Dryocopus pileatus) male feeding his begging chicks at nest hole in tree, Florida, April.
01734320
Harry Collins / Pileated woodpecker (Dryocopus pileatus) male feeding his begging chicks at nest hole in tree, Florida, April.
Elk (Cervus canadensis) bull bugling during the rut, Jasper National Park, Canada. September.
01734319
Harry Collins / Elk (Cervus canadensis) bull bugling during the rut, Jasper National Park, Canada. September.
African bush elephant (Loxodonta africana) and calf feeding in savannah grassland, Laikipia county, Kenya. May.
01732183
Jamie Unwin / African bush elephant (Loxodonta africana) and calf feeding in savannah grassland, Laikipia county, Kenya. May.
Tracking shot of Zebra (Equus Quagga) males chasing each other across the savannah and through rest of herd, in the morning, Laikipia county, Kenya. May.
01732181
Jamie Unwin / Tracking shot of Zebra (Equus Quagga) males chasing each other across the savannah and through rest of herd, in the morning, Laikipia county, Kenya. May.
Tracking shot of a Long-tailed widowbird (Euplectes progne) male performing mating display in the morning. The bird flies low over the savannah grassland. Laikipia county, Kenya. May.
01732187
Jamie Unwin / Tracking shot of a Long-tailed widowbird (Euplectes progne) male performing mating display in the morning. The bird flies low over the savannah grassland. Laikipia county, Kenya. May.
Two Bearded vultures (Gypaetus barbatus) fighting over food at at feeding site. One threatening and rushing at the other which is defending itself. Lamiana, Aragon, Spanish Pyrenees, Spain. April.
01735552
Roger Powell / Two Bearded vultures (Gypaetus barbatus) fighting over food at at feeding site. One threatening and rushing at the other which is defending itself. Lamiana, Aragon, Spanish Pyrenees, Spain. April.
Two Bearded vultures (Gypaetus barbatus) fighting over food at feeding site, with Griffon vultures (Gyps fulvus) behind, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
01735551
Roger Powell / Two Bearded vultures (Gypaetus barbatus) fighting over food at feeding site, with Griffon vultures (Gyps fulvus) behind, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
Bearded vulture (Gypaetus barbatus) pair, flying in close parallel formation, courtship display, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
01735548
Roger Powell / Bearded vulture (Gypaetus barbatus) pair, flying in close parallel formation, courtship display, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
Bearded vulture (Gypaetus barbatus) pair, in flight over hillside, male talon grappling with female in courtship display, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
01735547
Roger Powell / Bearded vulture (Gypaetus barbatus) pair, in flight over hillside, male talon grappling with female in courtship display, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
Bearded vulture (Gypaetus barbatus) carrying a Sheep's leg in beak being pursued by a Griffon vulture (Gyps fulvus) on hillside, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
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Roger Powell / Bearded vulture (Gypaetus barbatus) carrying a Sheep's leg in beak being pursued by a Griffon vulture (Gyps fulvus) on hillside, Lamiana, Aragon, Spanish Pyrenees, Spain. April.
Cuvier's dwarf caiman (Paleosuchus palpebrosus) lurking on riverbed, Formoso River, Bonito, Mato Grosso do Sul, Brazil.
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Franco Banfi / Cuvier's dwarf caiman (Paleosuchus palpebrosus) lurking on riverbed, Formoso River, Bonito, Mato Grosso do Sul, Brazil.
Red-flanked lorikeet (Charmosyna placentis) pair, male on left, perched on branch, courtship display. Female feeding from male. New Guinea. Captive.
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Roland Seitre / Red-flanked lorikeet (Charmosyna placentis) pair, male on left, perched on branch, courtship display. Female feeding from male. New Guinea. Captive.
Ornate lory (Trichoglossus ornatus) pair, courtship display, Sulawesi, Indonesia. Captive.
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Roland Seitre / Ornate lory (Trichoglossus ornatus) pair, courtship display, Sulawesi, Indonesia. Captive.
A pod of Type B1 Antarctic killer whales (Orcinus orca) hunting Weddell seal (Leptonychotes weddellii) using coordinated wave washing technique, Antarctic Peninsula, Antarctica. The synchronised charg...
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Bertie Gregory / A pod of Type B1 Antarctic killer whales (Orcinus orca) hunting Weddell seal (Leptonychotes weddellii) using coordinated wave washing technique, Antarctic Peninsula, Antarctica. The synchronised charg...