Tui De Roy / Scarlet Macaw (Ara macao) flying in rainforest canopy, upper Tambopata River, Peruvian Amazon, Peru

Piotr Naskrecki / Termite eggs and young nymphs in an underground nest, Atewa Range, Ghana

Kevin Schafer / Atlantic Salmon (Salmo salar) fry near Puerto Montt, part of an aquaculture program, Chile

Ingo Arndt / Blue Morpho (Morpho peleides) butterfly eggs at an early stage, Costa Rica

Flip Nicklin / Orca (Orcinus orca) pod in front of an ocean liner, southeast Alaska

Christian Ziegler / Army Ant (Eciton hamatum) guarding their own brood during an emigration between two nest sites, Barro Colorado Island, Panama

Christian Ziegler / Sangrillo (Croton billbergianus) have nectaries on their young leaves that attract Ants and Caterpillars, in this case the Caterpillar of the Yucatan Scintillant (Thisbe irenea) butterfly feeds with a...

Piotr Naskrecki / Army Ant (Eciton hamatum) motionless soldier guards an endless stream of workers leaving the bivouac, Costa Rica

Flip de Nooyer / Clover Dodder (Cuscuta epithymum) perennial vine in bloom, native in Europe, introduced into North America where it is considered an invasive weed

Tim Fitzharris / Tawny Eagle (Aquila rapax) perching on an old tree branch, Kenya

Gerry Ellis / Windmill farm near San Francisco using propellers and generators as an alternative energy source, California

Pete Oxford / Chagra cowboy on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboys on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboys on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboy on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Heidi & Hans-Juergen Koch / Great Egret (Ardea alba) resting on the back of an American Alligator (Alligator mississippiensis), Florida

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group on ice floe being passed by an Icebreaker, Possession Island, Ross Sea, Antarctica

Norbert Wu / Purple Sea Mane (Drymonema dalmatinum) jellyfish, Thailand, responsible for mass blooms in Gulf of Mexico where it is an invasive species

Mark Moffett / Phorid fly attacks leaf carrying Leafcutter Ant (Atta cephalotes) the fly will lay an egg from which a parasitizing maggot will hatch, Belize

Jim Brandenburg / Big Bluestem (Andropogon gerardii) grass blowing in the wind, an important part of the tallgrass prairie ecosystem, South Dakota

Tui De Roy / Short-tailed Albatross (Phoebastria albatrus) decoys donated from Japan placed strategically in an attempt to establish new breeding colony, Midway Atoll, Hawaii

Tui De Roy / Kiwifruit (Actinidia deliciosa) grown in New Zealand was renamed the Kiwi Fruit for export and became an international success, New Zealand

Norbert Wu / Purple Sea Mane (Drymonema dalmatinum) jellyfish, Thailand, responsible for mass blooms in Gulf of Mexico where it is an invasive species

Fred Bavendam / Frilled Sea Anemone (Metridium senile) surrounded by genetic clones of an Orange Frilled Sea Anemone, British Columbia, Canada

Fred Bavendam / Sea Pen (Sarcoptilus grandis) field with an Ocellate Sea Star (Nectria ocellata) crawling among them, Port Davey, Tasmania, Australia

Fred Bavendam / Fusilier (Caesio sp) school stream by an Elephants Ear Sponge (Ianthella basta) laden with Crinoids, Kimbe Bay, WNBI, Papua New Guinea

Norbert Wu / Sea Urchin (Sterechinus neumayeri) group and Sea Stars gather on an ice fall to eat algae, Antarctica

Mark Moffett / Leafcutter Ant (Atta vollenveideri) decaying nests which play an important ecological role since palms and mesquites sprout from the fertile soil created by the nests, Paraguay

Fred Bavendam / White-bonnet Anemonefish (Amphiprion leucokranos) and an Orange-fin Anemonefish (Amphiprion chrysopterus) occupying the same sea anemone, Milne Bay, Papua New Guinea

Sumio Harada / Coyote (Canis latrans) and Common Raven (Corvus corax) group and Magpies scavenge an elk carcass, Yellowstone National Park, Wyoming

Roland Seitre / Olive Ridley Sea Turtle (Lepidochelys olivacea) females coming ashore and returning to sea during an arribada nesting event, Ostional Beach, Costa Rica

Ingo Arndt / Olive Ridley Sea Turtle (Lepidochelys olivacea) females coming ashore and returning to sea during an arribada nesting event, Ostional Beach, Costa Rica

Donald M. Jones / Magnificent Frigatebird (Fregata magnificens) flock flying, Sian Ka'an Biosphere Reserve, Mexico

Ingo Arndt / Harvestman (Leiobunum sp) group, an introduced and invasive species, Germany

Mark Moffett / Marauder Ant (Pheidologeton diversus), major worker killing an intruder who tried to get through the trunk trail, Malaysia

Katherine Feng / Arrow Bamboo (Pseudosasa japonica) freshly cut bamboo is weighed and paid for at the Wolong Nature Reserve in China to help feed the 50-60 Pandas there An adult Panda will eat approximately 20 kilogra...

Mark Moffett / Weaver Ant (Oecophylla longinoda) group grab an adjacent leaf and stem with mandibles and toes and pull, gradually binding them together to make a nest, Malaysia

Luis Quinta / Northern krill (Meganyctiphanes norvegica) shoal, the stomach is coloured red from carotenoids, an indication that this euphausid feeds on copepods, Sesimbra, Portugal, Atlantic Ocean.

Luis Quinta / Northern krill (Meganyctiphanes norvegica) shoal, the stomach is coloured red from carotenoids, an indication that this euphausid feeds on copepods, Sesimbra, Portugal, Atlantic Ocean.

Luis Quinta / Northern krill (Meganyctiphanes norvegica) shoal, the stomach is coloured red from carotenoids, an indication that this euphausid feeds on copepods, Sesimbra, Portugal, Atlantic Ocean.

Alex Mustard / A snorkeller swimming through an aggregation of Golden jellyfish (Mastigias sp.) in a marine lake, Jellyfish Lake, Eil Malk Island, Palau, Pacific Ocean. November, 2015.

Alex Mustard / Pink-purple eggs of an Indo-pacific sergeant (Abudefduf vaigiensis), with eyes visible over half way through their week-long development before hatching, Bitung, North Sulawesi, Lembeh Strait, Molucca...

Doug Wechsler / Eastern subterranean termites (Reticulitermes flavipes) tending Termite balls fungus (Fibularhizoctonia sp.) an egg-mimicing fungus that deceives the termites into caring for it, Pennsylvania, USA. Se...

Sergio Hanquet / Mysid shrimp (Mysidacea sp.) swarming around Black spined sea urchin (Diadema antillarum), an invasive species, Tenerife, Canary Islands, Atlantic Ocean.

David Tipling / King penguin (Aptenodytes patagonicus) colony gathering on beach at dawn, with two tourists photographing the scene, St Andrews Bay, South Georgia. January.

Roland Seitre / African white-backed vultures (Gyps africanus), Ruppell's griffons (Gyps rueppelli) and Griffon vultures (Gyps fulvus) appraching an animal carcass to feed, St Louis region, Senegal, Africa.

Roland Seitre / African white-backed vultures (Gyps africanus) and Ruppell's griffons (Gyps rueppelli) feeding on an animal carcass by the side of the road, with a car waiting to pass, St Louis region, Senegal,...

Paul Harcourt Davies / Lesser twayblade (Neottia cordata also Listera cordata) This is an orchid of acidic habitats, never very common but may be frequently overlooked because of its small size and a tendency to grow unde...

Paul Harcourt Davies / Lesser twayblade (Neottia cordata also Listera cordata) This is an orchid of acidic habitats, never very common but may be frequently overlooked because of its small size and a tendency to grow unde...

Paul Harcourt Davies / Harlequin ladybirds (Harmonia axyridis) hibernating in the corner of an unheated bathroom. Podere Montecucco, Umbria, Italy. November.

Roland Seitre / Photographers taking pictures of Snow geese (Anser caerulescens) during winter migration. Victoriaville, Quebec, Canada. November.

Roland Seitre / Photographers taking picture of Snow geese (Anser caerulescens) during winter migration. Victoriaville, Quebec, Canada. November.

Roland Seitre / People photographing Snow geese (Anser caerulescens) during winter migration. Victoriaville, Quebec, Canada. November.

Sirachai Arunrugstichai / Whale shark (Rhincodon typus), an endangered species, feeding on zooplankton in nutrient-rich murky water, being followed by a school of Cobia (Rachycentron canadum), Adang-Rawi Archipelago, Satun, An...

Stefan Christmann / Cameraman Lindsay McCrae filming Emperor penguins (Aptenodytes forsteri) on a stormy day as they are moving around the huddled colony, trying to reach the wind sheltered side, Atka Bay, Antarctica, Ju...

Doug Gimesy / Sub-Antarctic / Brown skua (Stercorarius antarcticus) stealing an egg from a Royal penguin colony (Eudyptes schlegeli), Macquarie Island Australian Territory.? December.

John Chan / Elegant terns (Thalasseus elegans) diving and streaking which triggers the flock to take flight in unison, an example of flocking behavior, Bolsa Chica Ecological Reserve, Southern California, USA Mar...

John Chan / Elegant terns (Thalasseus elegans) gathering at mussel bed during breeding season, one hovering tern has a mussel clamped to its foot, a common mishap caused by stepping on an open mussel, Bolsa Chica...

John Chan / Elegant terns (Thalasseus elegans) gathering at breeding grounds take flight and return in unison, an example of flocking behavior, Bolsa Chica Ecological Reserve, Southern California, USA, March.

John Chan / Elegant terns (Thalasseus elegans) gathered at breeding grounds taking flight in unison, an example of flocking behavior, Bolsa Chica Ecological Reserve, Southern California, USA, March.

John Chan / Elegant terns (Thalasseus elegans) gathering at breeding grounds take flight in unison, an example of flocking behavior, Bolsa Chica Ecological Reserve, Southern California, USA, March.

Theo Bosboom / Long line of walking people with headlights, heading back at night from visiting Fagradalsfjall volcano on Iceland, photographed around half an hour after sunset. The eruption draws large numbers of v...

Theo Bosboom / Icelandic people watching and photographing lava at the eruption site, Fagradalsfjall volcano, Iceland, 2 April 2021. The volcano has drawn an estimated number of 30.000 visitors since the start of...

Theo Bosboom / Large numbers of people, mainly from Iceland due to the Coronavirus pandemic, at the site of the eruption of the Fagradalsfjall volcano, Iceland, 2 April 2021. The volcano has drawn an estimated nu...

Alex Mustard / Aggregation of Stingless golden jellyfish (Mastigias sp.) in a landlocked marine lake in the middle of an island. Their golden colour comes from endosymbiotic algae, which provide nutrition for the me...

Ingo Arndt / Honey bee (Apis mellifera) swarm invading another Honeybee colony living wild in an abandoned Black woodpecker nest cavity to steal their honey, Germany. September.

Jen Guyton / An endangered African wild dog, or painted wolf (Lycaon pictus) watching filmmaker Brett Kuxhausen in Gorongosa National Park, Mozambique. These individuals are part of the first pack of wild dogs to...

Ingo Arndt / Honey bee (Apis mellifera) swarm starting a colony inside an abandoned Black woodpecker nest cavity, showing nest entrance from outside, Germany. May.

Ingo Arndt / Honey bee (Apis mellifera) swarm entering an old Black woodpecker nest cavity in a hollow tree to build their hive, Germany.

Alex Mustard / Aggregation of stingless golden jellyfish (Mastigias sp.) in a landlocked marine lake in the middle of an island. Their golden colour comes from endosymbiotic algae, which provide nutrition for the me...

Alex Mustard / Aggregation of Stingless golden jellyfish (Mastigias sp.) in a landlocked marine lake in the middle of an island. Their golden colour comes from endosymbiotic algae, which provide nutrition for the me...

Magnus Lundgren / Marine vertical migration. Every night an an immense number of small animals to rise to the surface to eat, and after them follow predators from the depths. Balayan Bay, Batangas, the Philippines.

Magnus Lundgren / Marine vertical migration. Every night an an immense number of small animals to rise to the surface to eat, and after them follow predators from the depths. Balayan Bay, Batangas, the Philippines.

Sylvain Cordier / Tourists photographing Rainbow Mountains at sunset. Zhangye National Geopark, China Danxia UNESCO World Heritage Site, Gansu Province, China. 2018.

Sylvain Cordier / Photographers and tourists waiting in jeeps for Bengal tiger (Panthera tigris tigris). Jim Corbett National Park, Uttarakhand, India.

Frederique Olivier / Tourists on a zodiac iceberg cruise, Scoresby Sound, Greenland, 2016.

Frederique Olivier / Large flock of Antarctic petrels (Thalassoica antarctica) roosting on an iceberg, Antarctica, 2017.