Tony Wu / Sperm whale (Physeter macrocephalus), ten swimming together in gathering of more than 50 individuals. Whales with flatulence and defecating. Sri Lanka.

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) group gathering over water, Hondenven, Tubbergen, Netherlands, July.

Cyril Ruoso / Feral Horses (Equus caballus) gathering around waterhole, Namib-Naukluft National Park, Namibia.

Terry Whittaker / Water vole (Arvicola amphibius) swimming underwater, dragging nesting material back to its burrow, Kent, England, UK. October.

Tony Wu / Sperm whales (Physeter macrocephalus) large group gathering together, rubbing together to shed skin, interacting and defecating. Indian Ocean, March.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.

Jack Dykinga / Snow geese (Anser caerulescens) flying toward their gathering pond, with moon in the background, Boque del Apache National Wildlife Refuge, New Mexico. December.

Claudio Contreras,Claudio Contreras / Women gathering mollusc eggs for sale at market, Bilang Bilangang Island, Danajon Bank, Central Visayas, Philippines, April 2013

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) in shallow water gathering very close to shore, Aldabra Atoll, Seychelles, Indian Ocean

Juergen Freund / Farmers gleaning the shallows for seafood in front of houses they live in during the twice-yearly coconut harvest. Moromaho Island, Wakitobi, Sulawesi, Indonesia, November 2009.

Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico

Franco Banfi / Person in river flowing through beach. Camp with tents in background, gathering to watch yearly congregation of Bowhead whales (Balaena mysticetus). Primorsky Krai, Russia. August 2019.

Franco Banfi / Beach and river estuary, boreal forest in background, aerial view. Camp on beach, gathering to watch Bowhead whale (Balaena mysticetus) congregation. Vrangel Bay, Primorsky Krai, Russia. August 2019.

Franco Banfi / Camp in small bay, gathering to watchc congregation of Bowhead whales (Balaena mysticetus), boreal forest in background, aerial view. Vrangel Bay, Primorsky Krai, Russia. August 2019.

Ashley Cooper / Plastic bottle litter on beach, woman gathering litter in background. March 2019.

Sven Zacek / Great crested grebe (Podiceps cristatus) pair in courtship weed dance, presenting potential nesting material to each other after diving. Otepaa Nature Park, Valgamaa, Estonia. April.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) swimming with nesting material in beak. Cape Douglas, Fernandina Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) swimming with nesting material in beak. Punta Gavilanes, Fernandina Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) coming ashore with nesting material, water spray in air. Punta Gavilanes, Fernandina Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) swimming with Slate pencil urchin (Eucidaris sp) in beak. Punta Albemarle, Isabela Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi), two on rocks. Bird with Slate pencil urchin (Eucidaris sp) in beak with more Sea urchins below. Other bird sitting on nest. Punta Albemarle, Isabela Islan...

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) swimming with Slate pencil urchin (Eucidaris sp) in beak. Punta Albemarle, Isabela Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) with nesting material in beak. Punta Albemarle, Isabela Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) coming ashore with nesting material in beak. Punta Albemarle, Isabela Island, Galapagos.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) swimming with Starfish (Asteroidea) in beak. Punta Albemarle, Isabela Island, Galapagos.

Tui De Roy / Nazca booby (Sula granti) with stone in beak, possibly for nest building. Punta Suarez, Espanola Island, Galapagos.

Tui De Roy / Red-footed booby (Sula sula), pair at nest in tree overlooking coast. Bird on nest whilst other is landing with nest material. Genovesa Island, Galapagos.

Sandesh Kadur / Blue wildebeest (Connochaetes taurinus) gathering to cross a river during migration, Serengeti National Park, Tanzania.

Magnus Lundgren / Wild Wonders of China / Three Dorid nudibranchs (Chromodoris orientalis) gathering to mate, Po Bin Chau, Sai Kung archipelago, Hong Kong, China.

Remi Masson / Group of Wels catfish (Silurus glanis) gathering on the bottom of the River Rhone, France. June.

Remi Masson / Group of Wels catfish (Silurus glanis) gathering on the bottom of the River Rhone, France. June.

Ashley Cooper / Villagers in a remote subsistence farming village on an island in the Sunderbans, the Ganges Delta in Eastern India. December 2013.

Remi Masson / Lavaret (Coregonus lavaretus) gathering in the winter, by night. Aiguebelette lake, Alps, France

Remi Masson / Wels catfish (Silurus glanis), massive gathering, River Rhone, France.

Remi Masson / Wels catfish (Silurus glanis) large gathering on river bed, River Rhone, France.

Ashley Cooper / Striped necked terrapins (Mauremys caspica) in a river in Skala Eresou, Lesvos, Greece. June.

John Waters / Common European toads (Bufo bufo) gathering into a mating ball underwater, near Priddy, Somerset, England, UK, April.

David Fleetham / Florida manatees (Trichechus manatus latirostris) gathering at Three Sisters Spring in Crystal River, Florida, USA.

David Fleetham / Florida manatees (Trichechus manatus latirostris) gathering at Three Sisters Spring in Crystal River, Florida, USA.

Dave Bevan / Dipper (Cinclus cinclus) landing on a mossy boulder carrying nesting material, Ceredigion, Wales, UK, April.

Dave Bevan / Dipper (Cinclus cinclus) perching on a boulder with beakful of nesting material, Ceredigion, Wales, UK, April.

Espen Bergersen / Common guillemot (Uria aalge) gathering on sea below breeding colony. Hornoya birdcliff, Vardo, Norway. March

Juergen Freund / Banded sea kraits (Laticauda colubrina) gathering round mangrove tree at low tide with people watching in backgruond, Mali Island, Macuata Province, Fiji, South Pacific

Juergen Freund / Banded sea kraits (Laticauda colubrina) gathering round mangrove tree at low tide, Mali Island, Macuata Province, Fiji, South Pacific

Juergen Freund / Banded sea kraits (Laticauda colubrina) gathering round mangrove tree at low tide, Mali Island, Macuata Province, Fiji, South Pacific

Juergen Freund / Banded sea kraits (Laticauda colubrina) gathering round mangrove tree roots at low tide, Mali Island, Macuata Province, Fiji, South Pacific

Cyril Ruoso / Feral Horses (Equus caballus) gathering around waterhole, Namib-Naukluft National Park, Namibia.

Cyril Ruoso / Feral Horses (Equus caballus) gathering around waterhole, Namib-Naukluft National Park, Namibia.

Espen Bergersen / Aerial view of Whooper swans (Cygnus cygnus) gathering in river, with patterns of sediment deposits, Finland. Awarded with Second Place in the Bird Category of the Nordic Nature Photo Contest 2017.

Phil Savoie / Cliff swallow (Petrochelidon pyrrhonota) gathering mud for nest building, Yellowstone National Park, Montana, USA.

Phil Savoie / American barn swallow (Hirundo rustica erythrogaster) in flight gathering mud to build nest, Yellowstone National Park, Montana, August.

Nature Production / Blotched Fantail Ray / Speckled Stingray (Taeniurops meyeni) gathering for mating, Chichijima, Ogasawara Islands UNESCO World Heritage Site, Japan

Terry Whittaker / Water vole (Arvicola amphibius) swimming underwater, dragging nesting material back to its burrow, Kent, England, UK. October.

Nick Upton / Slow motion view of a Water vole (Arvicola amphibius) gathering Yellow water lily leaves (Nuphar lutea) in a large pond, near Bude, Cornwall, England, UK, June.

Tui De Roy / Humboldt penguin (Spheniscus humboldti) group gathering at landing site. Tilgo Island, La Serena, Chile. Vulnerable species.

Tui De Roy / Humboldt penguin (Spheniscus humboldti) group gathering at landing site. Tilgo Island, La Serena, Chile. Vulnerable species.

Tui De Roy / Humboldt penguin (Spheniscus humboldti) group gathering at landing site. Tilgo Island, La Serena, Chile. Vulnerable species.

Tui De Roy / Humboldt penguin (Spheniscus humboldti) group gathering at landing site. Tilgo Island, La Serena, Chile. Vulnerable species.

Tui De Roy / Humboldt penguin (Spheniscus humboldti) group gathering at landing site. Tilgo Island, La Serena, Chile. Vulnerable species.

Jen Guyton / Windmill under a gathering thunderstorm in the Kalahari Desert, South Africa. These traditional windmills are still used to raise groundwater for use in the home and to fill animal troughs. May 2011

Jen Guyton / Windmill under a gathering thunderstorm in the Kalahari Desert, South Africa. These traditional windmills are still used to raise groundwater for use in the home and to fill animal troughs. May 2011

Charlie Summers / Brook trout (Salvelinus fontinalis) gathering to spawn in a high mountain stream in Rocky Mountain National Park, Colorado, USA, October.

Erlend Haarberg / Gathering domesticated Reindeer (Rangifer tarandus) with helicopter and motorcycle for calf-marking in the Padjelanta National Park, Laponia World Heritage Site, Swedish Lapland, Sweden July

Erlend Haarberg / Gathering domesticated Reindeer (Rangifer tarandus) with motorcycle for calf-marking in the Padjelanta National Park, Laponia World Heritage Site, Swedish Lapland, Sweden July

Espen Bergersen / Large amount of gulls (Laridae) gathering around a fishing vessel fishing for herring, Kvaloya, Troms, Norway, December

Gerrit Vyn / Rakhine woman gathering clams by probing holes with her finger. Subsistence hunting pressure is intense on both marine and terrestrial wildlife in the region, Rakhine State, Maynmar, 2012

Tony Wu / Humpback whales (Megaptera novaeangliae) four interacting. The gathering appeared to be a competitive group centered upon the whale on the sand at the lower left of this image. That whale remained re...

Tony Wu / Sperm whales (Physeter macrocephalus) large group gathering together and interacting. In this image some are defecating (a common behaviour in the social gatherings) and shedding skin. Indian Ocean, M...

MYN / Niall Benvie / Diving bell spider (Argyroneta aquatica) underwater gathering air, Finland, June.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole, wide angle view. Maasai Mara National Reserve, Kenya.

Roger Powell / Sandwich terns (Sterna sandvicensis) gathering in shallow water. Oosterend, Texel Island, The Netherlands.

Espen Bergersen / Common guillemot (Uria aalge) large flock of birds gathering on the water near the Hornoya bird cliff, Finnmark, Norway. March.

Espen Bergersen / Common guillemot (Uria aalge) large flock of birds gathering on the water near the Hornoya bird cliff, Finnmark, Norway. March.

Anup Shah / African elephant (Loxodonta africana) herd gathering at the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / African elephant (Loxodonta africana) herd gathering at the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / African elephant (Loxodonta africana) herd gathering at the Mara River. Maasai Mara National Reserve, Kenya.

Jack Dykinga / Snow geese (Anser caerulescens) flying toward their gathering pond, with moon in the background, Boque del Apache National Wildlife Refuge, New Mexico. December.

Pascal Kobeh / Gathering of Humpback / Pink salmon (Oncorhynchus gorbuscha) in the mouth of a river that they are going to swim up for reproduction. During their spawning migration, males develop a pronounced humpe...

Luciano Candisani / Jacare Caiman (Caiman yacare) gathering at water's edge during dry season, Pantanal, Brazil

David Tipling / Manx Shearwaters (Puffinus puffinus) gathering at dusk in St Bride's Bay, with boat in the background, off Skomer Island, Pembrokeshire, Wales, UK, August.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Thomson's gazelle (Eudorcas thomsonii) gathering at the Mara River. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Thomson's gazelle (Eudorcas thomsonii) gathering at the Mara River. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Thomson's gazelle (Eudorcas thomsonii) gathering at the Mara River. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) gathering at a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Cyril Ruoso / Baka woman performing a dance by splashing the water after returning from gathering fruit, Cameroon

Juergen Freund / Dr. Ellen Ariel of James Cook University carries a newly caught green turtle (Chelonia mydas) for research data gathering, Townsville, Queensland, Australia, August 2011

Paul Williams / Yacare caiman (Caiman yacare) large numbers are attracted to drying pools to feed on the trapped fish at the end of the wet season, Pantanal, Pocone, Brazil, August

David Woodfall / Children playing in River Onny,understanding nature by gathering river stones make oven for pizzas,Shropshire,England, UK 2011

David Woodfall / Children playing in River Onny,understanding nature by gathering river stones make oven for pizzas,Shropshire,England, UK 2011