Richard Steel / 2020VISION / Male Redstart (Phoenicurus phoenicurus), perched on branch of flowering Hawthorn (Crataegus monogyna), Clwyd, Wales, UK, May. Did you know? Another common name for a Redstart is Firetail due to their...

Neil Aldridge / Meerkat (Suricata suricatta) standing and keeping watch while another excavates a burrow in soft sand before disappearing underground for the night. Makgadikgadi Pans, Botswana, April.

Anup Shah / Topi (Damaliscus lunatus jimela) two males sparring, with another approaching, Masai Mara National Reserve, Kenya. March

Georgette Douwma / Dead surgeonfish being 'cleaned' by a Bleusreak cleaner wrasse (Labroides dimidiatus). Many fish observed dead or dying on reefs in the Maldives, April 2012. Another episode of dying fish was in 2007....

Alex Mustard / Whale shark (Rhincodon typus) feeding on fish eggs (visible as white blobs) at the surface in calm weather, with another whale behind. Isla Mujeres, Quintana Roo, Yucatan Peninsular, Mexico, Caribbean...

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) eating the eggs of another salamander, Japan, August

Kristel Richard / Wild Chincoteague (Equus caballus) two breeding stallions greeting one another, Chincoteague National Wildlife Refuge, Chincoteague Island, Virginia, USA, June

Anup Shah / Olive baboon (Papio cynocephalus anubis) female grooming another females baby, Masai Mara National Reserve, Kenya, August

Andrew Parkinson / Redwing (Turdus iliacus) protecting a windfall apple from another bird. Derbyshire, UK, February. (Non-ex)

Andy Sands / Digger Wasp (Cerceris rybyensis) Female carrying two males attempting to displace one another to mate, West sussex, England, UK, July

Andy Rouse / African lioness (Panthera leo) resting with head on another at sunrise, Masai Mara National Reserve, Kenya

Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) approaching another as it eats a nut, Cairngorms National Park, Scotland, March 2012.

Markus Varesvuo / Great spotted woodpecker (Dendrocopus major) on tree trunk, another flying away, Kuhmo, Finland, February

Bertie Gregory / 2020VISION / Juvenile Peregrine falcons (Falco peregrinus) chasing one another in front of a Union Jack flag on top of the Houses of Parliament, London, England, UK, July

Uri Golman / Asiatic lioness (Panthera leo persica) licking another lioness from the pride, Gir Forest NP, Gujarat, India

Edwin Giesbers / Vulturine guineafowl (Acryllium vulturinum) portrait, another blurred in the background, captive

Sven Zacek / Herd of Roe Deer (Capreolus capreolus) on the horizon with another out-of-focus in foreground. Virumaa, Estonia, Europe, February.

Andrew Parkinson / 2020VISION / Great crested grebe (Podiceps cristatus) adult aggressively pursues another in a territorial dispute, Derbyshire, UK, March

Terry Whittaker / 2020VISION / Red deer (Cervus elaphus) stag chasing another during a fight, rutting season, Bushy Park, London, UK, October

Andrew Parkinson / Whooper swan (Cygnus cygnus) adult aggressively chasing another, UK visitor between November and March. Lancashire, UK, October.

Anup Shah / Black backed jackals (Canis mesomelas) one pup grooming another, Masai Mara National Reserve, Kenya

Klaus Echle / Red Fox (Vulpes vulpes) licking a tree trunk while another walks in the foreground. Black Forest, Germany, November.

Bence Mate / Green crowned brilliant hummingbird (Heliodoxa jacula) male taking off to feed at feeder in garden, another waiting perched on lichen covered branch, Costa Rica, January. Winner, Eric Hosking award at...

Lisa Hoffner / A baby orphan Elephant (Loxodonta africana), named Murka, wounded by a poacher's spear is comforted by the touch of another elephant's trunk from outside its pen. David Sheldrick Wildlife Trust Eleph...

Mark Hamblin / 2020VISION / Hen harrier (Circus cyaneus) female hovering over moorland, Glen Tanar Estate, Deeside, Scotland, UK, June. Photographer quote: "I'd been in the hide for over 5 hours when I heard the distant call of...

Andy Rouse / Grizzly Bear (Ursus arctos horribilis) with caught salmon, another bear more distant, with mountains backing the scene. Katmai, Alaska, USA, August.

Sergey Gorshkov / Red fox (Vulpes vulpes) one fox chasing another across snow, Kamchatka, Far east Russia, April

Juan Carlos Munoz / Magellanic penguin (Spheniscus magellanicus) flapping its wings, with another lying down. Puerto Deseado, Patagonia, Argentina, Nov 2008

Ernie Janes / Suffolk Punch heavy horse in field resting head another's back, UK, September

Anup Shah / Olive baboons (Papio cynocephalus anubis) grooming one another, with baby sitting alongside adults. Masai Mara National Reserve, Kenya. March.

Bryan and Cherry Alexander / Inuit hunter jumping from one ice floe to another. Ellesmere Island, Nunavut, Canada, 1994.

Aflo / Domestic cat rear view sitting on wall watching another cat.

Sergey Gorshkov / African Fish Eagle (Haliaeetus vocifer) displaying as another adult comes in for landing, Botswana

Kristel Richard / A wild Misaki-uma breeding stallion (right) brings back one of his mares to his band while another breeding stallion (left) charges him away, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Islan...

Wild Wonders of Europe / Varesvuo / House martins (Delichon urbicum) perched in a row on wire, with another in flight, Extremadura, Spain, April 2009

Angelo Gandolfi / Roe deer (Capreolus capreolus), with another behind. Piemonte, Italy.

Wild Wonders of Europe / Hamblin / Konik horse, stallions sizing one another up, Oostvaardersplassen, Netherlands, June 2009

Stephen Dalton / Marsh frog (Rana ridibunda) leaping over water, another in water, controlled conditions, from Europe

Wild Wonders of Europe / Widstrand / Griffon vulture (Gyps fulvus) head covered in blood from feeding, with the wing of another individual, Montejo de la Vega, Segovia, Castilla y Leon, Spain, March 2009

Anup Shah / Male Savanna baboon, olive race (Papio cynocephalus anubis) investigating, another standing near water, Masai Mara National Reserve, Kenya, August

Wild Wonders of Europe / Unterthiner / Eleonora's falcon (Falco eleonorae) perched on rock with another flying, Andros, Greece, September 2008

Carol Walker / Wild Horses / Mustangs, sorrel stallion striking at another stallion, McCullough Peaks Herd Area, Cody, Wyoming, USA

Edwin Giesbers / Banded mongoose (Mungos mungo) looking over the back of another, Queen Elizabeth National Park, Uganda

Andrew Parkinson / Two Kittiwakes (Rissa tridactyla) greeting one another after one returns to the nest site, Farne Islands, UK

Andy Rouse / Wandering albatross (Diomedea exulans) flying with another looking up, South Georgia

Wild Wonders of Europe / E Haarberg / Chamois (Rupicapra rupicapra) one looking down from rock at another, Gran Paradiso National Park, Italy, November 2008

Eric Baccega / Semi wild Przewalski horses (Equus ferus przewalskii), stallion biting another stallion to chase it from his herd, Parc du Villaret, Causse Mejean, Lozere, France

Jose B. Ruiz / Common sparrow (Passer domesticus) landing next to another sparrow near water, Alicante, Spain

Frederique Olivier / Emperor penguin {Aptenodytes forsteri} one adult with hewly hatched chick, another with hatching egg, Antarctica

Inaki Relanzon / Black browed albatross {Thalassarche melanophrys} standing on nest looking at camera with chick on another nest, Falklands Islands, South Atlantic, February

Georgette Douwma / Domestic horse making use of another horse's tail as fly whisk. UK.

Anup Shah / Two male Masai giraffe display to one another (Giraffa camelopardalis tippelskirchi) Masai Mara NR, Kenya

Neil Lucas / Two walrus facing one another. {Odonbenus rosmarus} Round Island, Alaska

Jabruson / Silverback Mountain gorilla displays to another male Virunga NP, DR Congo {Gorilla g beringei}

Anup Shah / African lion resting head on another lion {Panthera leo} Masai Mara, Kenya

Anup Shah / Spotted hyaena chases another with gazelle prey, Serengeti NP, Tanzania {Crocuta crocuta}

Anup Shah / Olive baboon babes hugging one another {Papio anubis} Kenya, East Africa

Michael & Patricia Fogden / Common Egg-eating Snake (Dasypeltis scabra) swallowing egg from another animal's nest, savannah, South Africa

Mitsuaki Iwago / Koala (Phascolarctos cinereus) on another's back, Australia

Anup Shah / Baby Olive baboon reaching out to another {Papio anubis}, Samburu National Reserve, Kenya

Anup Shah / Olive Baboon investigating another's new baby, Samburu NR, Kenya

Jabruson / Male Western lowland gorilla displaying at sight of another male in rainforest clearing, Odzala NP, Democratic Republic of Congo.

Tony Heald / Two African buffalo calves facing one another {Syncerus caffer} Kruger NP, South Africa

Anup Shah / Bonnet macaques {Macaca radiata} grooming one another in tree Periyar NP, Kerala, India

Anup Shah / Young African elephant following another and holding its tail, Masai Mara, Kenya

Richard Du Toit / Common Zebra (Equus quagga / burchellii) grooming one another, Gauteng Province, Rietvlei Nature Reserve, South Africa

Richard Du Toit / White rhinoceros (Ceratotherium simum) two grazing right next to one another rear view, Gauteng Province, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) resting its head on the back of another, Rietvlei Nature Reserve, Gauteng, South Africa

David Tipling / Gentoo Penguins (Pygoscelis papua) showing aggression as they pass by one another, South Georgia, November

Nick Upton / Dark green fritillary butterfly (Argynnis aglaja) feeding on Greater knapweed flower (Centaurea scabiosa) as another takes off in the background, chalk grassland meadow, Wiltshire, UK, July

Neil Aldridge / Meerkats (Suricata suricatta) or suricates, grooming one another in the Kalahari near Makgadikgadi Pans National Park, Botswana, April.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) female showing aggression towards another female who showed an interest in her baby, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) female begging to hold another's baby, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) female curious about another female's baby aged less than 1 month, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) female with her baby with another female in estrus, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) female begging to hold another female's baby, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) two mating whilst another feeds nearby, Tangkoko National Park, Sulawesi, Indonesia.

Denis-Huot / African Elephant (Loxodonta africana) baby elephant lying by fet of another. Amboseli National Park, Kenya.

David Pattyn / Black necked grebe (Podiceps nigricollis) pair chasing away another grebe in a territorial dispute, La Dombes lake area, France, April

David Pattyn / Coot (Fulica atra) one coot is chasing another one in a territorial dispute, La Dombes lake area, France, April

David Pattyn / Black necked grebe (Podiceps nigricollis) one pair mating while another couple is watching and waiting its turn to mate on the same spot, La Dombes lake area, France, April

Dale Sutton / 2020VISION / Common frog (Rana temporaria) leaping into a pond, with another on a rock, controlled conditions, UK.

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Yo' aged 49 years walking through the forest with another female 'Velu' aged 51 years sitting on a fallen tree in the background, Bossou Forest, Mo...

Anup Shah / Western chimpanzee (Pan troglodytes verus) males 'Tua' aged 53 years and 'Peley' aged 12 years feeding on palm oil fruits while another drinks from a hole in a tree behind, Bossou Forest, Mont Nimba...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Velu' aged 51 years watching another female 'Jire' aged 52 years intently as she using rock to crack open palm oil nuts, Bossou Forest, Mont Nimba,...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Yo' aged 49 years walking through the forest with another female 'Velu' aged 51 years sitting on a fallen tree in the background, Bossou Forest, Mo...

Fiona Rogers / Western chimpazee (Pan troglodytes verus) female 'Velu' aged 51 years watching another female 'Jire' aged 52 years intently, Bossou Forest, Mont Nimba, Guinea. January 2011.

Philippe Clement / Red fox (Vulpes vulpes) in defensive posture showing teeth and keeping ears flat, another fox, out of shot, is approaching, the Netherlands, October

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) one lands near another one already on snow covered ground, Kuusamo Finland February

Jabruson / African Forest elephant (Loxodonta africana cyclotis) red soil covered individual wanders amongst others coloured differently at Dzanga clearing. The Bai attracts elephants from all over the region an...

Jabruson / African Forest elephants (Loxodonta africana cyclotis) individuals interact with others gathered at Dzanga clearing, which attracts elephants from all over the region and the coloured variation in soi...

Jabruson / African forest elephants (Loxodonta africana cyclotis) gathered at Bai, one a particularly different red colour, most likely from soil from another area of the forest to the other elephants seen. Als...

Jabruson / African forest elephants (Loxodonta africana cyclotis) one covered in red soil wanders infront of bull elephant at Dzanga Bai. The Bai attracts elephants from all over the region and the coloured vari...

Jabruson / Tropical rainforest tree trunks, consisting of right to left 'Ewungu' (Golungensis sp) 'Edutu' (Papilionaceae) 'Babango' tree trunks (Diospyros bipindensis or iturensis) 'Mobeka' (Guarea thompsonii) '...

Jabruson / Hungarian Vizsla dog running across stream, another in background

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) breaching with another surfacing, Sea of Cortez (Gulf of California), Baja California, Mexico