SCOTLAND: The Big Picture / Islands of Boreray and Stac Lee, St Kilda, Outer Hebrides, Scotland, UK, summer.

Tui De Roy / Marine iguanas (Amblyrhynchus cristatus) silhouettes at sunset, Punta Vicente Roca, Isabela Island, Galapagos

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) males in breeding colouration on rocks, with sun halo, Floreana Island, Galapagos

David Fleetham / Blacktip reef shark (Carcharhinus melanopterus) swimming just below surface at sunset, split level view. Off the island of Yap, Micronesia.

Guy Edwardes / Porth Nanven, Cot Valley, Porth Nanven, Cornwall, England, UK. September 2017.

Guy Edwardes / The Drongs sea stacks silhouetted at sunset, Hillswick, Northmavine, Shetland, Shetland Isles, Scotland, UK. August 2014.

Guy Edwardes / The Drongs sea stacks silhouetted at sunset, Hillswick, Northmavine, Shetland, Shetland Isles, Scotland, UK. August 2014.

Guy Edwardes / The Drongs sea stacks silhouetted at sunset, Hillswick, Northmavine, Shetland, Shetland Isles, Scotland, UK. August 2014.

Inaki Relanzon / Gentoo penguins (Pygoscelis papua) on the beach at sunset, Sea Lion Island, Falkland Islands.

Alex Mustard / Grey seal (Halichoerus grypus) young seal silhouetted against the sun as it dives after breathing, Lundy Island, Devon, UK, Bristol Channel, August

Neil Aldridge / Nile crocodile (Crocodylus niloticus) resting in the sun on a grassy island in the middle of the Chobe River, northern Botswana.

Floris van Breugel / Sunset on the outer coast of Chichagof Island with the White Sulphur Hotsprings in the distance, South East Alaska, USA, July

Brent Stephenson / Sunset off Scott Island, with floating pieces of sea ice, Scott Inlet, Baffin Island, Canadian Arctic, August 2015.

Richard Robinson / Blue shark (Prionace glauca) worked from below with rays of sun, off the coast of Hawke's Bay, New Zealand, February.

David Pattyn / Puffin (Fratercula arctica) silhouettes, Hornoya, Varanger, Finnmark, Norway, May.

Constantinos Petrinos / Sunset reflected on the surface of the Aegean Sea on a calm day with a speedboat, Evia Island, Greece. July 2014.

Ross Hoddinott / Sunset at Trebarwith Strand with incoming tide, North Cornwall, UK. March 2014.

Nick Garbutt / Bornean sun bear (Helarctos malayanus euryspilus) climbing tree at Bornean Sun Bear Conservation Centre (BSBCC), Sepilok, Sabah, Borneo.

Sergey Gorshkov / Arctic foxes (Vulpes lagopus) playing, silhouetted at sunset, Wrangel Island, Far Eastern Russia. August 2010.

Peter Cairns / Isle of Rum at sunset viewed from Eigg, Scotland, April 2013.

Chris & Monique Fallows / Great white shark (Carcharodon carcharias) cruising on the surface at sunset, Dyer Island, Gansbaai, South Africa

Tui De Roy / Marine iguanas (Amblyrhynchus cristatus) sky-pointing position to keep cool in sun. Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador, June.

Bertie Gregory / 2020VISION / Red squirrel (Sciurus vulgaris) on branch in morning sun, Brownsea Island, Dorset, UK, February

Ole Jorgen Liodden / King Penguins (Aptenodytes patagonicus) at sunrise on the coast of South Georgia Island. Southern Ocean, November.

Doug Allan / Snow carved by wind, Signy Island, South Orkney Islands, Antarctica. Freeze Frame book plate page 14.

Matthew Maran / People in a small boat with the sun setting on the horizon. Pacific Rim National Park, Vancouver Island, Canada, September 2010, model released

Neil Lucas / Panoramic view, Little Razorback Island, Dellbridge Islands, Antarctica, October 2008, Digitally stitched image

Jerry Monkman / Sunrise near Brenton Point State Park, from Ocean Road, Newport, Rhode Island, USA, October 2009

Alex Mustard / An Australian Sea Lion (Neophoca cinerea) bathing in the sun at the surface. Kangaroo Island, South Australia, Australia. Southern Ocean. November

Alex Mustard / Oceanic whitetip shark (Carcharhinus longimanus) silhouetted against the sun, Cat Island, Bahamas, Atlantic Ocean

Alex Mustard / Male Great white shark (Carcharodon carcharias) with sunrays, Guadalupe Island, Mexico, Pacific Ocean.

Neil Lucas / Dragons blood trees (Dracena cinnibaris) and Desert rose (Adenium obesum socotranum) in Momi Valley, Socotra Island, Yemen, February 2008

Tim Laman / Rays of light passing though high montane rainforest on Pico Basile above 2000 m altitude, Bioko Island, Equatorial Guinea, January 2008

Steven Kazlowski / Sun setting as a blizzard freezes the landscape outside the Inupiaq village of Kaktovik, Barter Island, 1002 area of the Arctic National Wildlife Refuge, Alaska, October 2008

Colin Monteath / Nugget Point lighthouse at sunrise, South Island, New Zealand

Colin Monteath / Sunset from sand dunes above Mason Bay Beach, Rakiura National Park, Stewart Island, New Zealand

Todd Pusser / Hector's dolphins below surface {Cephalorhynchus hectori} Kaikoura, New Zealand Pacific

Konrad Wothe / Pasque Flower (Pulsatilla sp) on hillside beneath shining sun, Barakchin Island, Lake Baikal, Russia

Pete Oxford / Greater flamingo at sunset on beach {Phoenicopterus ruber} Floreana Island Galapagos Is Book page 92

Konrad Wothe / Bacardi Beach, Cayo Levantado, Dominican Republic, Caribbean

Jim Brandenburg / Inuits dog sledding in midnight sun, Ellesmere Island, Nunavut, Canada

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) pair sky pointing to keep cool in hot sun, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Green Sea Turtle (Chelonia mydas) female returning to the sea in early morning after nesting, Turtle Bay, Santa Cruz, Island, Galapagos Islands, Ecuador

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) pair silhouetted on lava shore at sunset, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Pascal Kobeh / Coast of l'Île-des-Pins with the New Caledonia pines (Araucaria columnaris) that gave the name to the island at sunset, New Caledonia, Pacific Ocean.

Alex Mustard / White-belly damsel (Amblyglyphidodon leucogaster) photographed against the light patterns created by the setting sun on the surface of the ocean. Gubal Island, Egypt. Strait Of Gubal, Gulf of Suez, Re...

Nick Garbutt / Bornean sun bear (Helarctos malayanus euryspilus) climbing in tree. Bornean Sun Bear Conservation Centre (BSBCC), Sepilok, Sabah, Borneo, Malaysia. Captive.

Nick Garbutt / Bornean sun bear (Helarctos malayanus euryspilus) foraging on forest floor. Bornean Sun Bear Conservation Centre (BSBCC), Sepilok, Sabah, Borneo, Malaysia. Captive.

Doug Perrine / Sea slug (Nembrotha cristata) with crest, crawling amongst Sun coral (Tubastraea sp). Puerto Galera, Mindoro Island, Philippines.

Enrique Lopez-Tapia / Sunset at Pura Tanah Lot / Tanah Lot Temple, Bali Island, Indonesia. 2015.

Tony Wu / North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching at sunset, Kupreanof Island, Frederick Sound, Alaska, USA, July.

Alex Mustard / Red sea fan (Melithaea sp.) growing beneath an island (Nudi Rock), with sun rays and trees. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.

SCOTLAND: The Big Picture / South Light at sunset, Fair Isle, Shetland, Scotland, UK, June.

Steven David Miller / Sunrise over Wedge Island, Cape Hillsborough National Park, Queensland, Australia. September

Suzi Eszterhas / Sun bear (Helarctos malayanus) Sabah, Malaysia

SCOTLAND: The Big Picture / Sunset over Garbh Eilean, Shiant Isles, Outer Hebrides, Scotland, UK. July, 2018.

Lynn M. Stone / Waves along Olga Bay at sunset; Kodiak Island, Alaska, USA. September 2018.

Lynn M. Stone / Waves along Olga Bay at sunset; Kodiak Island, Alaska, USA. September 2018.

Sven Zacek / Waves in autumn storm at dusk, Vilsandi National Park, Saaremaa Island, Saaremaa, Western Estonia. December 2015.

Juan Carlos Munoz / Teide volcano at sunset,Tenerife Island, Gran Canaria Island, The Canary Islands. August 2018.

Juan Carlos Munoz / Roque Bentayga sacred mountain, Tirajana ravine, Gran Canaria Island, The Canary Islands August 2018.

Mark Carwardine / The sun showing sunspots Salish Sea, Vancouver Island, British Columbia, Canada

Mark Carwardine / Killer whale or orca (Orcinus orca) swimming near freight ship, Salish Sea, Vancouver Island, British Columbia, Canada

Mark Carwardine / Killer whales / orcas (Orcinus orca) at sunset, Salish Sea, Vancouver Island, British Columbia, Canada

David Fleetham / Kawakiu Nui Beach on West End, Molokai, Hawaii. July 2017.

David Fleetham / Jack (Caranx sp), shoal of juveniles following Southern stingray (Dasyatis americana), searching for prey. Bahamas.

David Woodfall / Lesser Black backed gulls (Larus fuscus) silhouetted at dawn. Skomer Island , Pembrokeshire, Wales, UK. May.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) pair silhouetted at sunset next to Galapagos marine iguana (Amblyrhynchus cristatus) group. Cape Douglas, Fernandina Island, Galapagos.

Tui De Roy / Blue-footed booby (Sula nebouxii) group at sunset. Cape Douglas, Fernandina Island, Galapagos.

Tui De Roy / Blue-footed booby (Sula nebouxii) colony at sunet. Cape Douglas, Fernandina Island, Galapagos.

Tui De Roy / Nazca booby (Sula granti) sitting on nest with egg, overlooking sea at sunset. Gardner Islet, Floreana Island, Galapagos. December 2014.

Alex Mustard / Galapagos green turtle (Chelonia mydas agassizii) male silhouetted against the sun. Wolf Island, Galapagos National Park, Galapagos Islands. East Pacific Ocean.

Magnus Lundgren / Wild Wonders of China / Rocks along Yellow Sea coast at sunset. Yangma Island, Yantai, Shandong Province, China. September 2017.

Ashley Cooper / The Brough of Birsay lighthouse marks Orkney mainland's most north westerly tip. It was built in 1925 and converted to solar power in 2002. A bank of 36 solar panels charges an array of batteries that...

Ashley Cooper / Houses in Almere with solar PV panels on the roof. It is the Netherlands youngest town, in Flevoland, which was reclaimed from the sea. This planned city is very green, with space heating provided fro...

Ashley Cooper / Sun Island in Almere, which is the Netherlands youngest town, in Flevoland, which was reclaimed from the sea. This planned city is very green, with space heating provided from a nearby combined heat a...

Ashley Cooper / Sun Island in Almere, which is the Netherlands youngest town, in Flevoland, which was reclaimed from the sea. This planned city is very green, with space heating provided from a nearby combined heat a...

Ashley Cooper / View from the summit of Malolo island part of the Mamanucas Islands, Fiji, March 2007.

Ashley Cooper / View from the summit of Malolo island, Mamanuca Islands, Fiji. March 2007.

Ross Hoddinott / View of Godrevy island / lighthouse with flowering Sea thrift (Armeria maritima) in the foreground, near Hayle, Cornwall, UK. May.

Jeff Rotman / Lobstermen hauling traps, Chebeague Island, Casco Bay, Maine, USA, July.

Gavin Hellier / Timelapse from day to night looking towards Hong Kong harbor, Central district and Victoria Peak, Hong Kong Island, China, June 2017. Hellier

Sylvain Cordier / Pack ice at sunset, Wrangel island, Far East Russia.

Ernie Janes / Sunset overs Ko Chang Island, Thailand, February 2018.

Mike Potts / Southern royal albatross (Diomedea epomophora) in flight at sunset Southern Ocean south of Campbell Island. Subantarctic New Zealand.

Konrad Wothe / Beach at sunset and Canada geese (Branta canadensis), Spiekeroog Island, East Frisian Islands, Wittbulten National Park. Wadden Sea UNESCO World Heritage Site, Germany, June.

Alex Mustard / Group of young California sea lions (Zalophus californianus) playing in the sun in the early morning. Santa Barbara Island, Channel Islands. Los Angeles, California, USA. North East Pacific Ocean.

Lucas Bustamante / Galapagos marine iguana (Amblyrhynchus cristatus) silhouetted at sunset, Floreana Island, Galapagos.

Sandra Bartocha / Coastline of small rocky island (skerry) Bohuslan Archipelago , Sweden , July 2015.

Laurie Campbell / Puffin (Fratercula arctica) silhouette of bird at sunset, Lunga Island, Treshnish Isles, Inner Hebrides, Scotland, July.

Lynn M. Stone / Sunset on Sanibel Island, Florida, USA, December.

Michel Roggo / Mountains at sunset, South Shetland Island, Antarctic Peninsula, Antarctica. Photographed for The Freshwater Project

Michel Roggo / Icebergs near South Shetland Island at sunset, Antarctic Peninsula, Antarctica. Photographed for The Freshwater Project

Michel Roggo / Sunset over Lake Malawi, Malawi, November 2015. Photographed for The Freshwater Project

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) pair at sunset, Playa Escondida, Fernandina Island, Galapagos Islands, Ecuador