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Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax), Monterey Bay, California
00596679
Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax), Monterey Bay, California
Brunnich's Guillemot (Uria lomvia) nesting colony on cliff, Alkefjellet, Hinlopen Strait, Svalbard, Norway
00597665
Heike Odermatt / Brunnich's Guillemot (Uria lomvia) nesting colony on cliff, Alkefjellet, Hinlopen Strait, Svalbard, Norway
Humphead parrotfish (Bolbometopon muricatum) shoal spawning in early morning, part of mass aggregation of thousands of fish. Caroline Islands, Palau.
01627733
Tony Wu / Humphead parrotfish (Bolbometopon muricatum) shoal spawning in early morning, part of mass aggregation of thousands of fish. Caroline Islands, Palau.
Australian Pelican (Pelecanus conspicillatus) flock, New South Wales, Australia
00597514
Gary Bell/ Oceanwide / Australian Pelican (Pelecanus conspicillatus) flock, New South Wales, Australia
Grey Nurse Shark (Carcharias taurus), Solitary Islands Marine Park, New South Wales, Australia
00597485
Gary Bell/ Oceanwide / Grey Nurse Shark (Carcharias taurus), Solitary Islands Marine Park, New South Wales, Australia
Sea Goldie (Pseudanthias squamipinnis) school in coral reef with feather stars, Great Barrier Reef, Queensland, Australia
00597393
Gary Bell/ Oceanwide / Sea Goldie (Pseudanthias squamipinnis) school in coral reef with feather stars, Great Barrier Reef, Queensland, Australia
Piling with sponges, tunicates, and ascidians, Yorke Peninsula, South Australia, Australia
00597290
Gary Bell/ Oceanwide / Piling with sponges, tunicates, and ascidians, Yorke Peninsula, South Australia, Australia
Sea Anemone (Corynactis australis) group, Bicheno, Tasmania, Australia
00597274
Gary Bell/ Oceanwide / Sea Anemone (Corynactis australis) group, Bicheno, Tasmania, Australia
Yellow-banded Snapper (Lutjanus adetii) school, Heron Island, Great Barrier Reef, Queensland, Australia
00597238
Gary Bell/ Oceanwide / Yellow-banded Snapper (Lutjanus adetii) school, Heron Island, Great Barrier Reef, Queensland, Australia
Black-spot Goatfish (Parupeneus signatus) and Goldlined Seabream (Rhabdosargus sarba) school, Solitary Islands Marine Park, New South Wales, Australia
00597208
Gary Bell/ Oceanwide / Black-spot Goatfish (Parupeneus signatus) and Goldlined Seabream (Rhabdosargus sarba) school, Solitary Islands Marine Park, New South Wales, Australia
Blacktip Bullseye (Pempheris affinis) school, Solitary Islands Marine Park, New South Wales, Australia
00597207
Gary Bell/ Oceanwide / Blacktip Bullseye (Pempheris affinis) school, Solitary Islands Marine Park, New South Wales, Australia
Stripey (Microcanthus strigatus) school, Coffs Harbor, Solitary Islands Marine Park, New South Wales, Australia
00597200
Gary Bell/ Oceanwide / Stripey (Microcanthus strigatus) school, Coffs Harbor, Solitary Islands Marine Park, New South Wales, Australia
Eastern Pomfred (Schuettea scalaripinnis) school, Solitary Islands Marine Park, New South Wales, Australia
00597199
Gary Bell/ Oceanwide / Eastern Pomfred (Schuettea scalaripinnis) school, Solitary Islands Marine Park, New South Wales, Australia
Common Lionfish (Pterois volitans) hunting Basslets (Pseudanthias sp), Christmas Island, Australia
00597195
Gary Bell/ Oceanwide / Common Lionfish (Pterois volitans) hunting Basslets (Pseudanthias sp), Christmas Island, Australia
Painted Sweetlips (Diagramma pictum) in Slender Cardinalfish (Rhabdamia gracilis) school, Great Barrier Reef, Australia
00597167
Gary Bell/ Oceanwide / Painted Sweetlips (Diagramma pictum) in Slender Cardinalfish (Rhabdamia gracilis) school, Great Barrier Reef, Australia
Painted Sweetlips (Diagramma pictum) in Slender Cardinalfish (Rhabdamia gracilis) school near Double-headed Maori Wrasse (Cheilinus undulatus), Great Barrier Reef, Australia
00597166
Gary Bell/ Oceanwide / Painted Sweetlips (Diagramma pictum) in Slender Cardinalfish (Rhabdamia gracilis) school near Double-headed Maori Wrasse (Cheilinus undulatus), Great Barrier Reef, Australia
Double-headed Maori Wrasse (Cheilinus undulatus), Painted Sweetlips (Diagramma pictum), and Slender Cardinalfish (Rhabdamia gracilis) school, Great Barrier Reef, Queensland, Australia
00597140
Gary Bell/ Oceanwide / Double-headed Maori Wrasse (Cheilinus undulatus), Painted Sweetlips (Diagramma pictum), and Slender Cardinalfish (Rhabdamia gracilis) school, Great Barrier Reef, Queensland, Australia
Aerial shot of a mass of calved ice in a meltwater lake beneath Fjallsarlon Glacier, southern Iceland, August 2018.
01629809
Milan Radisics / Aerial shot of a mass of calved ice in a meltwater lake beneath Fjallsarlon Glacier, southern Iceland, August 2018.
Olive Ridley Sea Turtle (Lepidochelys olivacea) females coming ashore to nest during arribada, Playa de Escobilla Sanctuary, Oaxaca, Mexico
00594277
Ralph Pace / Olive Ridley Sea Turtle (Lepidochelys olivacea) females coming ashore to nest during arribada, Playa de Escobilla Sanctuary, Oaxaca, Mexico
Ivy bee (Colletes hederae) mating ball, showing a mass of males clustered around a female recently emerged from her burrow, Wiltshire, England, UK, September.
01618014
Nick Upton / Ivy bee (Colletes hederae) mating ball, showing a mass of males clustered around a female recently emerged from her burrow, Wiltshire, England, UK, September.
Lesser Flamingo (Phoenicopterus minor) flock flying, Lake Magadi, Kenya
00591785
Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) flock flying, Lake Magadi, Kenya
Lesser Flamingo (Phoenicopterus minor) flock nesting on island, Lake Natron, Tanzania
00591784
Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) flock nesting on island, Lake Natron, Tanzania
Lesser Flamingo (Phoenicopterus minor) nesting colony, Lake Natron, Tanzania
00591776
Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) nesting colony, Lake Natron, Tanzania
Firefly (Lamprohiza splendidula) light tracks in forest, Bavaria, Germany
00591095
Konrad Wothe / Firefly (Lamprohiza splendidula) light tracks in forest, Bavaria, Germany
Atlantic Sailfish (Istiophorus albicans) and Magnificent Frigatebird (Fregata magnificens) flock hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
00588603
Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) and Magnificent Frigatebird (Fregata magnificens) flock hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
Atlantic Sailfish (Istiophorus albicans) group hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
00588600
Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) group hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
Atlantic Sailfish (Istiophorus albicans) pair hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
00588599
Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) pair hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico
Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Monterey Bay, California
00582491
Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Monterey Bay, California
Clark's anemonefish (Amphiprion clarkii), pair tending to egg mass placed beside the protection of an anemone. Yap, Micronesia.
01607240
David Fleetham / Clark's anemonefish (Amphiprion clarkii), pair tending to egg mass placed beside the protection of an anemone. Yap, Micronesia.
Common Crane (Grus grus) flock flying dangerously close to windmill, Mecklenburg-Vorpommern, Germany
00587761
Holger Duty/ BIA / Common Crane (Grus grus) flock flying dangerously close to windmill, Mecklenburg-Vorpommern, Germany
Straw-colored Fruit Bat (Eidolon helvum) group roosting, Maputo, Mozambique
00585895
Piotr Naskrecki / Straw-colored Fruit Bat (Eidolon helvum) group roosting, Maputo, Mozambique
Butterflyfish (Chaetodon sp) and Sergeant Major Damselfish (Abudefduf saxatilis) school, Negros Oriental, Philippines
00586452
Tim Fitzharris / Butterflyfish (Chaetodon sp) and Sergeant Major Damselfish (Abudefduf saxatilis) school, Negros Oriental, Philippines
Parrotfish (Scaridae), Wrasse (Labridae), and Sergeant Major Damselfish (Abudefduf saxatilis) school, Balicasag Island, Philippines
00586444
Tim Fitzharris / Parrotfish (Scaridae), Wrasse (Labridae), and Sergeant Major Damselfish (Abudefduf saxatilis) school, Balicasag Island, Philippines
Globefish (Diodon nicthemerus) swimming past a mass of plastic moving in the current, North Sulawesi, Indonesia.
01612388
Jurgen Freund / Globefish (Diodon nicthemerus) swimming past a mass of plastic moving in the current, North Sulawesi, Indonesia.
Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
00584721
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
00584720
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
American Bison (Bison bison) herd grazing in winter, Gardiner, Yellowstone National Park, Montana
00583804
Sebastian Kennerknecht / American Bison (Bison bison) herd grazing in winter, Gardiner, Yellowstone National Park, Montana
American Bison (Bison bison) herd grazing in winter, Gardiner, Yellowstone National Park, Montana
00583803
Sebastian Kennerknecht / American Bison (Bison bison) herd grazing in winter, Gardiner, Yellowstone National Park, Montana
Hanuman Langur (Semnopithecus entellus) group on temple, Virupaksha Temple, Hampi, Karnataka, India
00583053
Fiona Rogers / Hanuman Langur (Semnopithecus entellus) group on temple, Virupaksha Temple, Hampi, Karnataka, India
Galapagos Shark (Carcharhinus galapagensis), Reviliagigedo Island, Mexico
00581519
Ralph Pace / Galapagos Shark (Carcharhinus galapagensis), Reviliagigedo Island, Mexico
Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
00581517
Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
00581461
Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
Olive Ridley Sea Turtle (Lepidochelys olivacea) nesting, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico. Vulnerable species.
01598881
Claudio Contreras / Olive Ridley Sea Turtle (Lepidochelys olivacea) nesting, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico. Vulnerable species.
Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in seasonal pond, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador
00577320
Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in seasonal pond, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador
Marine Iguana (Amblyrhynchus cristatus) group basking on coast, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador
00573177
Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) group basking on coast, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador
Giant Crab Spider (Sparassidae) mother with spiderlings, Udzungwa Mountains National Park, Tanzania
00572097
Paul Bertner / Giant Crab Spider (Sparassidae) mother with spiderlings, Udzungwa Mountains National Park, Tanzania
Assassin Bug (Acanthaspis sp) being attacked by ants, Gunung Leuser National Park, Sumatra, Indonesia
00571918
Paul Bertner / Assassin Bug (Acanthaspis sp) being attacked by ants, Gunung Leuser National Park, Sumatra, Indonesia
Mass wildflower display Lanceleaf monolopia (Monolopia lanceolata) Great Valley phacelia (Phacelia civiliata) and purple Lemmon's mustard, (Caulanthus anceps) The Temblor Range  in evening light in th...
01572926
Jack Dykinga / Mass wildflower display Lanceleaf monolopia (Monolopia lanceolata) Great Valley phacelia (Phacelia civiliata) and purple Lemmon's mustard, (Caulanthus anceps) The Temblor Range in evening light in th...
Magnetic termite (Amitermes meridionalis) aerial view of mounds in grassland, Litchfield National Park, Northern Territory, Australia.
01446053
Ingo Arndt / Magnetic termite (Amitermes meridionalis) aerial view of mounds in grassland, Litchfield National Park, Northern Territory, Australia.
Tisza mayflies (Palingania longicauda) swarming, River Tisza, Hungary, June
01392996
Ingo Arndt / Tisza mayflies (Palingania longicauda) swarming, River Tisza, Hungary, June
Cape gannets (Morus capensis / Sula capensis) at nesting colony, zooming from tight to wide shot, Lamberts Bay, South Africa, December
01392992
Ingo Arndt / Cape gannets (Morus capensis / Sula capensis) at nesting colony, zooming from tight to wide shot, Lamberts Bay, South Africa, December
Cape fur seals (Arctocephalus pusillus) at colony, Cape Cross, Namibia, December
01392990
Ingo Arndt / Cape fur seals (Arctocephalus pusillus) at colony, Cape Cross, Namibia, December
Villagers collecting eggs from Olive ridley sea turtles (Lepidochelys olivacea) during the first two days of the arribada (mass nesting event). This is the only place in the world where it is legal to...
01445902
Ingo Arndt / Villagers collecting eggs from Olive ridley sea turtles (Lepidochelys olivacea) during the first two days of the arribada (mass nesting event). This is the only place in the world where it is legal to...
Olive ridley sea turtles (Lepidochelys olivacea) digging their nests by night with stars during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
01445866
Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) digging their nests by night with stars during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore at twilight during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
01445861
Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore at twilight during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
01445856
Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.
King Penguin (Aptenodytes patagonicus) rookery crowded with nesting birds incubating eggs or protecting their small chicks, Salisbury Plain, South Georgia Island, February 2011
01385767
Ingo Arndt / King Penguin (Aptenodytes patagonicus) rookery crowded with nesting birds incubating eggs or protecting their small chicks, Salisbury Plain, South Georgia Island, February 2011
Mayflies (Palingenia longicauda) swarming, Tisza river, Hungary, June
01385760
Ingo Arndt / Mayflies (Palingenia longicauda) swarming, Tisza river, Hungary, June
Christmas Island Red Crab (Gecarcoidea natalis) blurred view of vast number of individuals moving along their annual migration route, Christmas Island, Indian Ocean, Australian Territory
01301244
Ingo Arndt / Christmas Island Red Crab (Gecarcoidea natalis) blurred view of vast number of individuals moving along their annual migration route, Christmas Island, Indian Ocean, Australian Territory
Christmas Island Red Crabs (Gecarcoidea natalis)  crossing road in huge numbers during annual migration, Christmas Island, Indian Ocean, Australian Territory
01301229
Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) crossing road in huge numbers during annual migration, Christmas Island, Indian Ocean, Australian Territory
Christmas Island Red Crabs (Gecarcoidea natalis) arriving in huge numbers, at coast for spawning, Christmas Island, Indian Ocean, Australian Territory
01301130
Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) arriving in huge numbers, at coast for spawning, Christmas Island, Indian Ocean, Australian Territory
Christmas Island Red Crabs (Gecarcoidea natalis) gatthered together on beach the day before spawning, Christmas Island, Indian Ocean, Australian Territory
01301134
Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) gatthered together on beach the day before spawning, Christmas Island, Indian Ocean, Australian Territory
Christmas Island Red Crabs (Gecarcoidea natalis) massing on coastal rocks, the morning after spawning, Christmas Island, Indian Ocean, Australian Territory
01301141
Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) massing on coastal rocks, the morning after spawning, Christmas Island, Indian Ocean, Australian Territory
American Bison (Bison bison) herd stampeding, South Dakota, USA
01301156
Ingo Arndt / American Bison (Bison bison) herd stampeding, South Dakota, USA
American Bison (Bison bison) herd stampeding, South Dakota, USA
01301155
Ingo Arndt / American Bison (Bison bison) herd stampeding, South Dakota, USA
Grass-Yellow butterflies (Eurema sp.) on tropical rainforest floor, Christmas Island, Indian Ocean, Australian Territory
01301178
Ingo Arndt / Grass-Yellow butterflies (Eurema sp.) on tropical rainforest floor, Christmas Island, Indian Ocean, Australian Territory
Flock of Rooks (Corvus frugilegus) roosting in tree at dusk, Hessen, Germany, Europe
01301180
Ingo Arndt / Flock of Rooks (Corvus frugilegus) roosting in tree at dusk, Hessen, Germany, Europe
Flock of Bramblings (Fringilla montifringilla) perched together in branches. It's estimated that four  million individiuals return to roost during winter in Black Forest, Germany. February.
01301184
Ingo Arndt / Flock of Bramblings (Fringilla montifringilla) perched together in branches. It's estimated that four million individiuals return to roost during winter in Black Forest, Germany. February.
Flock of Bramblings (Fringilla montifringilla) roosting together in branches. It's estimated that four  million individiuals roost in the Black Forest, during winter months, Germany. February.
01301190
Ingo Arndt / Flock of Bramblings (Fringilla montifringilla) roosting together in branches. It's estimated that four million individiuals roost in the Black Forest, during winter months, Germany. February.
Flock of Bramblings (Fringilla montifringilla) taking off / landing on branches. It's estimated that four  million individiuals roost in the Black Forest, during winter months, Germany. February.
01301189
Ingo Arndt / Flock of Bramblings (Fringilla montifringilla) taking off / landing on branches. It's estimated that four million individiuals roost in the Black Forest, during winter months, Germany. February.
Mastigias jellyfish (Mastigias sp) with mass of jellyfish in background, Jellyfish lake, Palau, Western Pacific Islands, Micronesia
01279842
Ingo Arndt / Mastigias jellyfish (Mastigias sp) with mass of jellyfish in background, Jellyfish lake, Palau, Western Pacific Islands, Micronesia
Mass of Mastigias jellyfish (Mastigias sp) in Jellyfish lake, Palau, Western Pacific Islands, Micronesia, March 2009
01279839
Ingo Arndt / Mass of Mastigias jellyfish (Mastigias sp) in Jellyfish lake, Palau, Western Pacific Islands, Micronesia, March 2009
Flock of Brambling (Fringilla montifringilla) perched at roosting tree, overwintering, Steiermark, Austria
01279820
Ingo Arndt / Flock of Brambling (Fringilla montifringilla) perched at roosting tree, overwintering, Steiermark, Austria
Mass of Ladybirds (Hippodamia convergens)  hibernating on pine tree bark, California, USA
01279810
Ingo Arndt / Mass of Ladybirds (Hippodamia convergens) hibernating on pine tree bark, California, USA
Mass of Sea trout (Salmo trutta trutta) eggs, with embryos visible, Europe.
01296265
Ingo Arndt / Mass of Sea trout (Salmo trutta trutta) eggs, with embryos visible, Europe.
Shoal of Pacific / South african sardines (Sardinops sagax) Monterey Bay Aquarium,  USA
01296264
Ingo Arndt / Shoal of Pacific / South african sardines (Sardinops sagax) Monterey Bay Aquarium, USA
Bed of Blue mussels (Mytilus sp.) densely packed together on rock, Lamberts Bay, South Africa
01296262
Ingo Arndt / Bed of Blue mussels (Mytilus sp.) densely packed together on rock, Lamberts Bay, South Africa
King penguin (Aptenodytes patagonicus) colony with adults and chicks. St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence
01296253
Ingo Arndt / King penguin (Aptenodytes patagonicus) colony with adults and chicks. St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence
Flock of Bramblings (Fringilla montifringilla) in flight, an estimated four million return to roost  overwinter in Black Forest, Germany, March.
01301081
Ingo Arndt / Flock of Bramblings (Fringilla montifringilla) in flight, an estimated four million return to roost overwinter in Black Forest, Germany, March.
Ladybirds (Hippodamia convergens) gathering to mate, California, USA.
01279764
Ingo Arndt / Ladybirds (Hippodamia convergens) gathering to mate, California, USA.
Common starlings (Sturnus vulgaris) flock flying in formation to confuse hunting Peregrine Falcons (Falco peregrinus), Rome, Italy. January 2009
01279730
Ingo Arndt / Common starlings (Sturnus vulgaris) flock flying in formation to confuse hunting Peregrine Falcons (Falco peregrinus), Rome, Italy. January 2009
Aerial view of crowd of people at the Rheinkultur Festival, Bochum, Germany.
01279791
Ingo Arndt / Aerial view of crowd of people at the Rheinkultur Festival, Bochum, Germany.
Monarch butterflies (Danaus plexippus) gathered to drink, overwintering colony, Michoacan, Mexico
01198372
Ingo Arndt / Monarch butterflies (Danaus plexippus) gathered to drink, overwintering colony, Michoacan, Mexico
Mass of Jersey tiger moths (Euplagia quadripunctaria) on tree trunk, Rhodes, Greece
01198335
Ingo Arndt / Mass of Jersey tiger moths (Euplagia quadripunctaria) on tree trunk, Rhodes, Greece
Cloud of Monarch butterflies (Danaus plexippus) flying, overwintering colony, Michoacan, Mexico
01198343
Ingo Arndt / Cloud of Monarch butterflies (Danaus plexippus) flying, overwintering colony, Michoacan, Mexico
Large flock of Snow Geese (Chen caerulescens) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA
01198261
Ingo Arndt / Large flock of Snow Geese (Chen caerulescens) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA
Tussock moth caterpillars mass together for defense. Comoe NP, Ivory Coast {Lymantriidae}. This behaviour tricks predators into thinking the caterpillars are a single, much larger, organism.
01107093
Ingo Arndt / Tussock moth caterpillars mass together for defense. Comoe NP, Ivory Coast {Lymantriidae}. This behaviour tricks predators into thinking the caterpillars are a single, much larger, organism.
Humpback Whale (Megaptera novaeangliae) pair gulp feeding and gulls hunting Northern Anchovy (Engraulis mordax), Monterey Bay, California
00570967
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) pair gulp feeding and gulls hunting Northern Anchovy (Engraulis mordax), Monterey Bay, California
Japanese Firefly (Luciola cruciata) group flying along river at night, Shikoku, Japan
00570955
Hiroya Minakuchi / Japanese Firefly (Luciola cruciata) group flying along river at night, Shikoku, Japan
Spotted Eagle Ray (Aetobatus narinari) group, Santa Fe Island, Galapagos Islands, Ecuador
00569959
Pete Oxford / Spotted Eagle Ray (Aetobatus narinari) group, Santa Fe Island, Galapagos Islands, Ecuador
Gentoo Penguin (Pygoscelis papua) group coming ashore, Sea Lion Island, Falkland Islands
00568423
Michael Milicia/ BIA / Gentoo Penguin (Pygoscelis papua) group coming ashore, Sea Lion Island, Falkland Islands
Common Crane (Grus grus) flock at sunrise, Brandenburg, Germany
00568314
Thomas Krumenacker/ BIA / Common Crane (Grus grus) flock at sunrise, Brandenburg, Germany
American Bison (Bison bison) herd on prairie with quartz, Blue Mounds State Park, Minnesota
00565303
Jim Brandenburg / American Bison (Bison bison) herd on prairie with quartz, Blue Mounds State Park, Minnesota
Snow Goose (Chen caerulescens) flock in pond at sunrise, Bosque del Apache National Wildlife Refuge, New Mexico
00564888
Tim Fitzharris / Snow Goose (Chen caerulescens) flock in pond at sunrise, Bosque del Apache National Wildlife Refuge, New Mexico
Greater Flamingo (Phoenicopterus ruber) flock taking flight, Andalusia, Spain
00563712
Oscar Diez/ BIA / Greater Flamingo (Phoenicopterus ruber) flock taking flight, Andalusia, Spain
White Rhinoceros (Ceratotherium simum) mother and calf with Red-billed Oxpeckers (Buphagus erythrorhynchus), South Africa
00562111
Pete Oxford / White Rhinoceros (Ceratotherium simum) mother and calf with Red-billed Oxpeckers (Buphagus erythrorhynchus), South Africa