David Woodfall / Small Pearl bordered fritillary butterfly (Boloria selene) in grass, Radnorshire Wildlife Trust Nature Reserve, Wales, UK, June.

Paul D Stewart / 1881 portrait of Charles Robert Darwin (12 February 1809 - 19 April 1882) English Naturalist and author of the Origin of Species. 1922 Hand coloured portrait aquatint of Darwin by G. Sidney Hunt after...

Danny Green / Grass Snake (Natrix natrix) on lily pad, reflected in water. Leicestershire, UK, October.

Chris Gomersall / 2020VISION / Ruddy turnstone (Arenaria interpres) feeding on shingle beach, Norfolk, England, UK, November. Did you know? Turnstones can flip rocks almost as heavy as they are.

Sven Zacek / Grass Snake (Natrix natrix) looking out from between wood slats. Estonia, Europe, June.

Robin Chittenden / Grass snake (Natrix natrix) swimming at surface, Dobrogea Tulcea, Danube Delta, Romania, May

Ernie Janes / Turnstones (Arenaria interpres) perched on sea wall with pier in background, Norfolk, UK, March

Terry Whittaker / 2020VISION / Grass snake (Natrix natrix) swimming through water, Wicken Fen, Cambridgeshire, UK, June

B&S Draker / Collared Peccary (Tayassu tajacu) adult in field of Huisache Daisy (Amblyolepis setigera). Sinton, Corpus Christi, Coastal Bend, Texas, USA, March.

Juergen Freund / Pink anemonefish (Amphiprion perideraion) hiding amongst the tentacles of its closed anemone host, Kimbe Bay, West New Britain, Papua New Guinea.

Danny Green / 2020VISION / Grass Snake (Natrix natrix) coiled, basking, Staffordshire, England, UK, April

Danny Green / 2020VISION / Grass Snake (Natrix natrix) portrait, Staffordshire, England, UK, April

Georgette Douwma / Pink anemonefish (Amphiprion perideraion) with anemone showing the effects of bleaching. The bleached anemone is almost white, whereas the unbleached anemone is brown due to the presence of symbiotic...

Solvin Zankl / Grass snake (Natrix natrix) head portrait flicking tongue

Paul Hobson / Grass snake (Natrix natrix) swimming amongst duck weed, Oxfordshire, UK

Edwin Giesbers / Shed skin of grass snake {Natrix natrix} on lilypad, Netherlands.

Edwin Giesbers / Grass snake {Natrix natrix} coiled, the Netherlands

Laurie Campbell / Turnstones (Arenaria interpres) taking to the air as wave crashes over the rock they are perching on, Northumberland Coast, England, November

Alan Williams / Turnstone (Arenaria interpres) in flight at tide line in winter plumage with tail spread for landing, Whitstable Bay, Kent, UK, December

Wild Wonders of Europe / Oxford / Wild Iberian lynx (Lynx pardinus) male, one year, with GPS tracking collar, sitting, Sierra de Andjar Natural Park, Mediterranean woodland of Sierra Morena, north east Jan Province, Andalusia, Spain,...

Kim Taylor / Grass Snake (Natrix natrix) captive, Surrey, England

Hiroya Minakuchi / Pink Anemonefish (Amphiprion perideraion) in Magnificent Sea Anemone (Heteractis magnifica) host tentacles, Celebes Sea

Andy Sands / Grass snake (Natrix natrix) basking on tree stump among Bluebells, Hertfordshire, England. UK

Georgette Douwma / Pink anemonefish (Amphiprion perideraion) in host anemone. Papua New Guinea.

Ross Hoddinott / Small pearl-bordered fritillary {Boloria selene}, Marsland mouth, Cornwall / Devon, UK.

Andy Sands / Grass snake (Natrix natrix) feigning death, Hertfordshire, England. UK

Solvin Zankl / Grass Snake (Natrix natrix) beside Marsh marigold flower in riverine habitat, Germany

Tim Laman / Pink anmonefish (Amphiprion perideraion) in anemone on coral reef in Borneo. Sipadan Island, Sabah, Malaysia.

Tim Laman / Pink anemonefish (Amphiprion perideraion) amongst tentacles of Sea anemone, Indo-pacific

Gary K. Smith / Turnstone (Arenaria interpres) in coastal pool, Norfolk, England, UK, February

Gary K. Smith / Turnstones (Arenaria interpres) taking off from coastal saltings, North Norfolk, England, UK, Winter

Tony Phelps / Grass snake {Natrix natrix} male with eyes glazed prior to moulting, Surrey, UK

Bernard Castelein / Small / Little pratincole {Glareola lactea} in flight, Bund Baretha, Rajasthan, India

Doug Perrine / Pink anemonefish {Amphiprion perideraion} on host sea anemone {Heteractis magnifica} Great Barrier Reef, Queensland, Australia

Ross Hoddinott / Small pearl bordered fritllary (Boloria selene) on Pyramidal orchid (Anacamptis pyramidalis) UK

John Cancalosi / White faced Domestic sheep {Ovis aries} wearing collar with bell, Switzerland, Europe

Doug Perrine / Pink anemonefish {Amphiprion perideraion} amongst Magnificent sea anemone, Palau Micronesia

Andy Sands / Grass snake {Natrix natrix} swimming, Captive, UK

Chris Newbert / Pink Anemonefish (Amphiprion perideraion) in a Magnificent Sea Anemone (Heteractis magnifica), Papua New Guinea

Fred Bavendam / Pink Anemonefish (Amphiprion perideraion) nestled among the tentacles of its Sea Anemone host, Great Barrier Reef, Queensland, Australia

Fred Bavendam / Pink Anemonefish (Amphiprion perideraion) nestled among the tentacles of its Sea Anemone host, Coral Sea, Queensland, Australia

Rolf Nussbaumer / Turnstone in surf {Arenaria interpres} Sanibel Is, Florida, USA.

Rolf Nussbaumer / Collared peccary drinking {Tayassu tajacu} Texas, USA.

Rolf Nussbaumer / Turnstone on beach {Arenaria interpres} Sanibel Is, Florida, USA.

Birgitte Wilms / Pink Anemone fish (Amphiprion perideraion) in host Magnificent Sea Anemone

Chris Newbert / Pink Anemonefish (Amphiprion perideraion) in Magnificent Sea Anemone (Heteractis magnifica) the fish will bite the Anemone causing it to ball-up so the fish can lay or tend to their eggs at the foot o...

Konrad Wothe / Kentish Plover (Charadrius alexandrinus) male at nest, Europe

Larry Minden / Collared Lizard (Crotaphytus collaris) holding itself up off of hot rocks, Mojave Desert, California

Fred Bavendam / Collared Butterflyfish (Chaetodon collare) school, Andaman Sea, Thailand

Tony Phelps / Grass snake feigning death {Natrix natrix} Purbeck, Dorset, UK

Michael Pitts / Pink anemonefish {Amphiprion perideraion} in anemone. Palau, Micronesia

Michael Pitts / Pink anemonefish amongst anemone tentacles {Amphiprion perideraion} Yap, Micronesia

George McCarthy / Grass snake {Natrix natrix} threatening Common toad {Bufo bufo} puffed up in defence, UK

Andrew Cooper / Grass Snake swimming, England (Natrix natrix) Devon

Doug Perrine / Pink anemonefish {Amphiprion perideraion} in sea anemone, Palau, Micronesia (Non-ex).

David Welling / Collared peccary, Texas, USA.

Georgette Douwma / Collared butterflyfish {Chaetodon collare} Andaman sea, Thailand

Chris Packham / Grass snake swimming in pond covered in pondweed, England,

Tony Phelps / Grass snake female feigning death - defensive behaviour, UK

Mike Wilkes / Grass snake guarding its eggs, UK

Artur Tabor / Grass snake eating Edible frog (Rana esculenta) Poland

Ashok Jain / Rose Ringed Parakeet looking out of nest hole. Keoladeo NP India (Psittacula krameri)

George McCarthy / Grass snake {Natrix natrix} with Common toad {Bufo bufo} inflated in defense. UK

Richard Du Toit / Two Lionesses fitted with radio tracking collars {Panthera leo} Chobe NP, Botswana

Mike Wilkes / Head of Grass Snake in grass (Natrix natrix) UK

Chris Packham / Grass snake on abandonned car bonnet

Andrew Cooper / Grass Snake head, England

David Woodfall / Small pearl bordered fritillary butterfly (Boloria selene) in grass, Radnorshire Wildlife Trust Nature Reserve, Wales, UK, June.

Ross Hoddinott / Small pearl bordered fritillary (Boloria selene) resting on yellow rattle (Rhinanthus minor), RHS Rosemoor, Devon, UK. May

Markus Varesvuo / Turnstone (Arenaria interpres) profile portrait, Uto Finland June

Andrew Parkinson / Turnstone (Arenaria interpres). Shetland Islands, Scotland, UK, September.

Colin Varndell / Grass snake (Natrix natrix) about to slough its skin, Dorset, UK May

Scott Leslie / Northern Parula (Setophaga americana) in autumn, Canada

Georgette Douwma / Redtail or Collared butterflyfish (Chaetodon collare) Andaman Sea, Thailand.

Georgette Douwma / Collared or Redtail butterflyfish (Chaetodon collare) swimming over coral reef with soft corals. Andaman Sea, Thailand. (Digital composite).

Scott Leslie / Northern Parula (Setophaga americana) female, Canada

Scott Leslie / Northern Parula (Setophaga americana) male, Canada

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) perched on wall, London, UK January

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) at bird feeders in urban garden, London, UK January

Robin Chittenden / Rose ringed Parakeet (Psittacula krameri) at bird feeders in urban garden, London, UK January

Tui De Roy / Ruddy turnstones (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) walking across sand. Galapagos Islands, Ecuador, November.

Loic Poidevin / Collared scops owl (Otus lettia) Kanha National Park, Madhya Pradesh, India, March

Terry Whittaker / 2020VISION / Grass snake (Natrix natrix) being released into new habitat, next to a brownfield site scheduled for development, by Ecologist Brett Lewis. Kent, UK, June 2012. Model released.

Terry Whittaker / 2020VISION / Grass snake (Natrix natrix) being released into new habitat, next to a brownfield site scheduled for development, by Ecologist Brett Lewis. Kent, UK, June 2012. Model released.

Danny Green / Grass Snake (Natrix natrix) on a lily pad. Leicestershire, UK, September.

Danny Green / Grass Snake (Natrix natrix) on a lily pad. Leicestershire, UK, October.

Danny Green / Grass Snake (Natrix natrix) on lily pad, reflected in water, Leicestershire, UK, October.

Shibai Xiao / Collared scops owl (Otus bakkamoena lempiji) left and Asian barred owlet (Glaucidium cuculoides) on right, held captive in mans hands, being sold on market, Guangxi Province, China, November 2011.

Rod Williams / Ringed teal (Callonetta leucophrys) male swimming in water. Captive, occurs Central South America.

Rod Williams / Ringed teal (Callonetta leucophrys) male scratching head on edge of water, Central Southern USA. Captive.

Ben Lascelles / Southern / Crested Screamer (Chauna torquata) parental pair with chicks at nest. Ibera Wetlands Provincial Park, Argentina, October.

Ross Hoddinott / Small pearl-bordered fritillary butterfly (Boloria selene) resting with open wings, Marsland Mouth, Cornwall/Devon border, UK, May.

Ross Hoddinott / Small pearl-bordered fritillary butterfly (Boloria selene) wings closed, resting on fern, Boscastle, North Cornwall, UK, May 2011.