Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years and protecting her infant son 'Flanle' aged 3 years from an aggressive male, Bossou Forest, Mont Nimba, Guinea. January 2011.

Christophe Courteau / Mountain Gorilla (Gorilla beringei) female holding baby in dense vegetation in Volcanoes National Park, Rwanda, at an altitude of 3000m, short dry season, February

Andrew Parkinson / 2020VISION / A male (left) and female Ptarmigan (Lagopus mutus) in winter plumage taking flight from an ice field as a skier passes by, Cairngorms National Park, Scotland, UK, March 2011. 2020VISION Exhibition.

Piotr Naskrecki / Giant Monkey Frog (Phyllomedusa bicolor) female watching an approaching male, Surinam

Andrew Parkinson / 2020VISION / An adult male Mallard (Anas platyrhynchos) comes in to land, backlit by evening sunlight, Derbyshire, England, UK, March. Did you know? In addition to the colour differences between male and female du...

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) landing on a collared dove kill in a garden, Derbyshire, UK, November 2011. Did you know? In falconry sparrowhawks were traditionally used by priests.

Alex Mustard / 2020VISION / Two male Common cuttlefish (Sepia officinalis) compete for a female (on right) during courtship, Torbay, Devon, UK, May. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? Cuttlefish have an...

Peter Cairns / 2020VISION / Osprey (Pandion haliaeetus) in flight, fishing at dawn, Rothiemurchus forest, Cairngorms NP, Scotland, UK, July. Photographer quote: ""This female, caught at first light, has two hungry chicks waiting...

Diane McAllister / Coastal Brown bear (Ursus arctos horribilis) female and her cub standing in the long grass. She is looking warily at an approaching boar. Lake Clark National Park, Alaska, USA, July

Danny Green / 2020VISION / Red deer (Cervus elaphus) hind with two Jackdaws (Corvus monedula) on her back, Richmond Park, London, England, UK, October. Photographer quote: "Everything in nature is connected. These two jackdaws...

Alex Mustard / An adult female California sea lion (Zalophus californianus) head portrait, in a rocky underwater cave. La Paz, Baja California Mexico. Sea of Cortez, East Pacific Ocean. October

Eric Baccega / Polar bear (Ursus maritimus) female and her two cubs on an iceberg, off Baffin Island. Nunavut, Canada, August 2010

Solvin Zankl / Female Olive ridley sea turtle (Lepidochelys olivacea) swimming from the open ocean towards the beach of Ostional, Costa Rica, Pacific Ocean to gather for an arribada (mass nesting event). November

Solvin Zankl / Mature female Olive ridley sea turtles (Lepidochelys olivacea) arriving on the beach of Ostional, Costa Rica, Pacific coast, during an arribada / mass nesting event, November

Andrew Parkinson / Grey seal {Halichoerus grypus} adult female rests on the larger body of an adult male. Lincolnshire, UK

Andrew Parkinson / Grey seal {Halichoerus grypus} as an adult female bounds toward the sea she is momentarily raised off the ground on just its flippers. Lincolnshire, UK

Andrew Parkinson / Bengal tiger (Panthera tigris tigris) an adult female sniffing for scent marks. Bandhavgarh National Park, Madhya Pradesh, India.

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

Nick Upton / Burdock gall fly (Terellia tussilaginis) female feeding on an Oxeye daisy / Marguerite flower (Leucanthemum vulgare) chalk grassland meadow, Wiltshire, UK, August.

Alex Hyde / False Black Widow (Steatoda nobilis), female an invasive species to the UK. The false widow has been established in the UK for over 100 years, particularly around ports on the south coast of England w...

Alex Hyde / False Black Widow (Steatoda nobilis), female an invasive species to the UK. The false widow has been established in the UK for over 100 years, particularly around ports on the south coast of England w...

Alex Hyde / False Black Widow (Steatoda nobilis) female, an invasive species to the UK.

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.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) female grooming an infant, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) female grooming an infant, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fana' aged 54 years protecting her grandson 'Flanle' aged 3 years from an aggressive female 'Yo' aged 49 years who is angry at a juvenile female 'J...

Bertie Gregory / 2020VISION / Adult female Peregrine falcon (Falco peregrinus) taking flight from the roof an office block, Bristol, England, UK, May. Did you know? Peregrine falcons have specially adapted nostrils to prevent the...

Christophe Courteau / Mountain Gorilla (Gorilla beringei) female with baby in dense vegetation in Volcanoes National Park, Rwanda, at an altitude of 3000m, short dry season, February

Donald M. Jones / Magnificent Frigatebird (Fregata magnificens) displaying male with inflated gular air pounch and female at nest site, Sian Ka'an Biosphere Reserve, Mexico

Will Watson / Two female Mantled / Golden howler monkeys (Alouatta palliata) with an infant in tree canopy, Lalo Loor Reserve, Manabi province, Ecuador.

Roger Powell / Common guillemot (Uria aalge) pair at nest, one about to incubate an egg while the other watches, Great Saltee Island, Wexford, Republic of Ireland, June

Roger Powell / Common guillemot (Uria aalge) pair at nest, one about to incubate an egg while the other watches, Great Saltee island, Wexford, Republic of Ireland, June

Charlie Summers / Tree swallows (Tachycineta bicolor) two perform an aerial dance as they change the guard on their nest, Aurora, Colorado, USA June

Anup Shah / Olive baboon (Papio cynocephalus anubis) young female showing her rear to an older female to show subordination, Masai Mara National Reserve, Kenya, September

LYNN M. STONE / Female Pug in an basket with Indian corn. USA

LYNN M. STONE / Female Pug dog in an basket with chrysanthemums, USA.

Wild Wonders of Europe / Möllers / Female European bison / Wisent (Bison bonasus) two years, in an accomodation enclosure in shortly after its release, Bieszczady National Park, Bukowiec, Poland, September 2011, model released

Wild Wonders of Europe / Möllers / Tiny male Wasp spider (Argiope bruennichi) with large female behind on their webs, Etang des Boires - an oxbow of the river Allier, Pont-du-Chateau, Auvergne, France, August 2010

Wild Wonders of Europe / Möllers / Female Wasp spider (Argiope bruennichi) on web, Etang des Boires - an oxbow of the river Allier, Pont-du-Chateau, Auvergne, France, August 2010

Bertie Gregory / 2020VISION / Female Common teal (Anas crecca) sitting on an ice covered lagoon, Brownsea Island, Dorset, England, UK, February

Andrew Parkinson / 2020VISION / Rock ptarmigan (Lagopus mutus) male (left) and female take flight from an ice field as a skier passes close by, Cairngorm Mountains, Scotland, UK, March 2011. Did you know? The word ptarmigan comes fr...

Florian Möllers / Quinling Golden snub nosed monkey (Rhinopitecus roxellana qinlingensis), close up of hands of adult female clinging to the fur on the back of an adult male whilst hugging each other. Zhouzhi Nature Re...

Ross Hoddinott / 2020VISION / Emerald damselfly (Lestes sponsa), Arne RSPB reserve, Dorset, England, UK, September. 2020VISION Book Plate. Did you know? An adult female Emerald Damselfly can stay underwater for 30 minutes whilst l...

Linda Pitkin / 2020VISION / Atlantic salmon (Salmo salar) pair after capture and release for an Environment Agency breeding program, showing breeding colours, River Itchen, Hampshire, England, UK, January

Gerrit Vyn / Trumpeter swans (Cygnus buccinator) adult pairresting in an agricultural field, Skagit County, Washington, USA, February

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) standing on a frozen lake in falling snow, Derbyshire, England, UK, January

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) landing on a lake, Derbyshire, England, UK, July Sequence 3/3

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) landing on a lake, Derbyshire, England, UK, July Sequence 1/3

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) standing on a frozen lake in falling snow, Derbyshire, England, UK, January

Andrew Parkinson / 2020VISION / Portrait of an adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) standing on a frozen lake in the snow, with a Coot (Fulica atra) passing by in the background, Derbyshire, England, UK, January

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a still lake, backlit, Derbyshire, England, UK, April

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) landing on a lake, Derbyshire, England, UK, July Sequence 2/3

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) standing on a frozen lake in falling snow, Derbyshire, England, UK, January

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June. 2020VISION Book Plate.

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / Portrait of an adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) with ducklings, on a still lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) with ducklings, on a still lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) with ducklings, on a still lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a calm lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) with ducklings, on a still lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) with ducklings, on a still lake, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) swimming on a lake in the rain, Derbyshire, England, UK, June

Andrew Parkinson / 2020VISION / An adult female Mallard (Anas platyrhynchos) stretching her wings on a calm lake, Derbyshire, England, UK, June

Brent Stephenson / Pair of Australasian Gannets (Morus serrator) mating at the nest. Male has an identification ring used for research purposes. Cape Kidnappers, Hawkes Bay, New Zealand, September.

Brent Stephenson / Pair of Australasian Gannets (Morus serrator) mating at the nest. Male has an identification ring used for research purposes. Cape Kidnappers, Hawkes Bay, New Zealand, September.

Brent Stephenson / Female Stitchbird (Notiomystis cincta) perched on an angled branch with tail cocked. Tiritiri Matangi Island, Auckland, New Zealand, September.

Andrew Parkinson / 2020VISION / An adult female Coot (Fulica atra) swimming rapidly, pursued by a male concealed among the splashing water, intent on mating with her, Derbyshire, England, UK, March 2011

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) plucking a collared dove in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / An adult female Sparrowhawk (Accipiter nisus) feeding on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Portrait of an adult female Sparrowhawk (Accipiter nisus) on a collared dove kill in a garden, Derbyshire, UK, November 2011

Andrew Parkinson / 2020VISION / Portrait of an adult female Sparrowhawk (Accipiter nisus) on a collared dove kill in a garden, Derbyshire, UK, November 2011

Alex Mustard / 2020VISION / An adult female captive Yellow / Spiny seahorse (Hippocampus guttulatus) being handled by keeper, Weymouth Sealife Centre, Dorset, England, UK.

Nick Upton / 2020VISION / 'Squidgy' an 18 month female Common / Eurasian crane (Grus grus), dancing in Barley stubble as male crane 'Mennis' looks on and calls and 'Twinkle' forages in the background, flock of birds released b...

Nick Upton / 2020VISION / 'Squidgy' an 18 month female Common / Eurasian crane (Grus grus), dancing in Barley stubble as male crane "Mennis" looks on and "Twinkle" forages in the background, within the flock of birds released...

Nick Upton / 2020VISION / 'Squidgy' an 18 month female Common / Eurasian crane (Grus grus) dancing in Barley stubble near two males 'Mennis' and 'Bart', within the flock of birds released by the Great Crane Project onto the So...

Piotr Naskrecki / Giant Monkey Frog (Phyllomedusa bicolor) female watching an approaching male, Surinam

Fiona Rogers / Proboscis Monkey (Nasalis larvatus) female carrying an infant under her belly walking on the mudflats of a mangrove swamp at low tide. Bako National Park, Sarawak, Borneo, Malaysia, April.

Anup Shah / Proboscis monkey (Nasalis larvatus) female carrying an infant under her belly walking on the mudflats of a mangrove swamp at low tide, Bako National Park, Sarawak, Borneo, Malaysia, April

Anup Shah / Bonobo (Pan paniscus) mature male 'Tembo' chasing an adolescent while a female 'Nioki' with her baby 'Bomango' watches, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) female 'Opala' playfully running around another female with some branches to entertain an infant, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) female 'Opala' playfully running around another female with some branches to entertain an infant, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Female Proboscis Monkey (Nasalis larvatus) holding a baby together with an older juvenile sitting on the mudflats of a mangrove swamp at low tide. Bako National Park, Sarawak, Borneo, Malaysia, April...

Ann & Steve Toon / Wildlife warden measuring size of an egg-laying female Loggerhead turtle (Caretta caretta) Banga Nek, Kwazulu Natal, South Africa, December 2010

Andy Rouse / Mountain Gorilla (Gorilla beringei) female with an infant on her back. Rwanda, Africa

Alex Mustard / A female White's Seahorse (Hippocampus whitei) on an orange sponge. Nelson Bay, Port Stephens, New South Wales, Australia, November.

Alex Mustard / An adult female Spiny Seahorse (Hippocampus guttulatus) in a meadow of seagrass (Zostera marina). Studland Bay, Dorset, England, UK, August. Photographed under licence from Marine Management Organisat...

Alex Mustard / An adult female Spiny Seahorse (Hippocampus guttulatus) in a meadow of seagrass (Zostera marina). Studland Bay, Dorset, England, UK, August. Photographed under licence from Marine Management Organisat...

Alex Mustard / A female White's Seahorse (Hippocampus whitei) on an orange sponge. Manly, Sydney, New South Wales, Australia, November.

Kim Taylor / Jumping Spider (Marpissa mucosa) female on an acorn, close-up showing multiple eyes. Surrey, UK, September.

Danny Green / 2020VISION / Red Deer (Cervus elaphus) silhouette of hind in woodland glade at dusk, Bradgate Park, Leicestershire, England, UK, October. Did you know? In the absence of natural predators, the UK red deer populati...

Tim Laman / Satin Bowerbird (Ptilonorhynchus violaceus minor) young male in female plumage inspecting the bower of an adult male. This bower is decorated with all natural objects. Rainforest of the Atherton Table...