Suzi Eszterhas / African Elephant (Loxodonta africana) in defensive posture towards safari vehicle, Sabi Sands Private Game Reserve, South Africa

Guy Edwardes / African elephant (Loxodonta africana) with Egret (Ardeidae sp) on back wtih tourists watching from boat in background. Chobe River, Botswana. 2017.

Yva Momatiuk & John Eastcott / Ice climber scaling Skaftafellsjokull Glacier, Skaftafell National Park, Iceland

Yva Momatiuk & John Eastcott / Ice climbers atop Skaftafellsjokull Glacier, Skaftafell National Park, Iceland

Yva Momatiuk & John Eastcott / Ice climber scaling Skaftafellsjokull Glacier, Skaftafell National Park, Iceland

Colin Monteath/ Hedgehog House / Kayakers paddling back to cruise ship Polar Pioneer, Lemaire Channel, Antarctic Peninsula, Antarctica

Andy Rouse / Bengal tiger (Panthera tigris tigris) with tourists watching from cars, Ranthambore, India

Pete Oxford / Yellow-tailed Surgeonfish (Prionurus laticlavius) school and snorkeler, Galapagos Islands, Ecuador

Pete Oxford / Yellow-tailed Surgeonfish (Prionurus laticlavius) school and snorkelers, Galapagos Islands, Ecuador

Pete Oxford / Red-footed Booby (Sula sula) flying juvenile being photographed by tourist, Genovesa Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Sea Lion (Zalophus wollebaeki) pup and tourist, Galapagos Islands, Ecuador

Pete Oxford / Pacific Green Sea Turtle (Chelonia mydas agassizi) and snorkeler, Galapagos Islands, Ecuador

Pete Oxford / Marine Iguana (Amblyrhynchus cristatus) group photographed by tourist, Fernandina Island, Galapagos Islands, Ecuador

Rob Jordan / 2020VISION / Timelapse of tourists boarding a boat to take them to the Farne Islands, Seahouses Harbour, Northumberland, England, UK, July 2011

Thomas Marent / African Elephant (Loxodonta africana) crossing dirt road near tourists, Serengeti National Park, Tanzania

Wild Wonders of Europe / Lundgren / European sturgeon (Huso huso) captive at Danube Delta Eco-Tourism Museum Centre aquarium in Tulcea, Danube Delta, Romania, June. Critically endangered.

Enrique Lopez-Tapia / Domestic Asian elephants (Elephas maximas) used for riding safaris with their keepers, Royal Chitwan National Park, Nepal.

Enrique Lopez-Tapia / Domestic Asian elephants (Elephas maximas) used for riding safaris with their keepers, Royal Chitwan National Park, Nepal.

Enrique Lopez-Tapia / Tourists riding on domestic Indian elephant (Elephas maximus) crossing Narayani River in the dawn mist during wildlife safari, Royal Chitwan National Park, Nepal.

Enrique Lopez-Tapia / Tourists riding domesticated Indian Elephant (Elephas maximas) on safari, Royal Chitwan National Park, Nepal. October 2011.

Enrique Lopez-Tapia,Enrique Lopez-Tapia / Gentoo penguin (Pygoscelis papua) and Antarctic cruise liner 'MV Ushuaia' in Neko Harbour, Andvord Bay. Antarctic Peninsula, Antarctica

Enrique Lopez-Tapia / Tourists on a zodiac going past icebergs in Iceberg Alley, Pleneau Island, Antarctica

Rob Jordan / 2020VISION / Arctic tern (Sterna paradisaea) in flight at twilight using slow shutter speed to accentuate blur and motion in low-key light, Inner Farne, Farne Islands, Northumberland, July.

Rob Jordan / 2020VISION / Arctic Tern on rocks with watching tourists on Inner Farne, Farne Islands, Northumberland

Peter Cairns / 2020VISION / Bass Rock at dawn, North Berwick, Scotland, UK, August. 2020VISION Book Plate. Did you know? Approximately an eighth of the world's Northern gannet population breeds on Bass Rock.

Peter Cairns / 2020VISION / Herring gull (Larus argentatus) standing on the roof of a car, Portree, Skye, Scotland, UK, June

Peter Cairns / 2020VISION / Great skua (Stercorarius skua) displaying, Shetland Isles, Scotland, UK, July

Peter Cairns / 2020VISION / Great skua (Stercorarius skua), Shetland Isles, Scotland, UK, July

Peter Cairns / 2020VISION / Tourist watching a Puffin (Fratercula arctica), Shetland Isles, Scotland, UK, July 2011. Did you know? When flying a Puffin can flap its wings 400 times a minute.

Peter Cairns / 2020VISION / Puffin (Fratercula arctica) standing on a rock, posing for a tourist holding a camera, Shetland Isles, Scotland, UK, July 2011. 2020VISION Book Plate. Did you know? Although the largest colonies of pu...

Peter Cairns / 2020VISION / Arctic Tern (Sterna paradisaea) against white sky, Farne Islands, Northumberland, England, UK, July

Brent Stephenson / Columnar basalt formations at the 180 metre high Edinburgh Hill. Zodiac full of cruise ship tourists for scale. South Shetland Islands, Antarctica, December.

Brent Stephenson / Columnar basalt formations at the 180 metre high Edinburgh Hill. Zodiac full of cruise ship tourists for scale. South Shetland Islands, Antarctica, December.

John Abbott / Tourists watching large colony of Marine Iguanas (Amblyrhynchus cristatus) Punta Espinosa on Fernandina Island, Galapagos, August 2010

Bryan and Cherry Alexander / Emperor penguin (Aptenodytes forsteri) chick by a line of photographers. Snow Hill Island, Antarctica, October.

John MacPherson / 2020VISION / Visitors on Chanonry Point watching Bottlenose dolphins (Tursiops truncatus) playing and breaching, Moray Firth, Inverness-shire, Scotland, UK, May. 2020VISION Exhibition. Did you know? Dolphins are o...

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) group at surface, Moray Firth, Inverness-shire, Scotland, UK, August

Juergen Freund / Moonlit landscape of the bungalows of Misool Eco Resort, Raja Ampat, Indonesia, January 2010.

Juergen Freund / Aerial of Kri Island, Kri Eco Resort and Sorido Bay Resort. Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Bungalows of Misool Eco Resort as night falls. Misool, Raja Ampat, West Papua, Indonesia, January 2010.

Juergen Freund / Bungalows of Misool Eco Resort as night falls. Misool, Raja Ampat, West Papua, Indonesia, January 2010

Juergen Freund / Snorkeler swims amongst Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass w...

Juergen Freund / Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass when bread is thrown into...

Bryan and Cherry Alexander / Tourists on icebreaker "Professor Multanovskiy" watching Polar bear (Ursus maritimus) in pack ice. Svalbard, Norway, 2004.

Eric Baccega / View from deck of a cruise ship cruising along Baffin Island with an iceberg emerging out ot the mist, Nunavut, Canada, August 2010

Jeff Rotman / Caribbean Reef shark (Carcharhinus perezi) in hypnotic trance being lifted by shark handler, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Shark handler wearing chain mail suit feeding Caribbean Reef shark (Carcharhinus perezi) Bahamas, Caribbean Sea. Model release Model released.

Matthew Maran / Shadow of trained Indian elephant (Elephas maximus) carrying wildlife watchers, in green pool of water, with Barasingha / Swamp deer (Cervus duvaucel) Kaziranga National Park, Assam, India, November 2...

Pete Oxford / Dugout canoe in blackwater stream, Yasuni National Park Biosphere Reserve, Amazon rainforest, Ecuador

Colin Monteath / Mt Sefton, climber at dawn above Mueller hut and cloud-filled Mueller Glacier, Mt Cook National Park, New Zealand

Flip Nicklin / Whale Shark (Rhincodon typus) surrounded by several scuba divers, threatened, Cocos Island, Costa Rica

Flip Nicklin / Two scuba divers swimming through sea cave with schooling Grunts, Cocos Island, Costa Rica

Gerry Ellis / Dromedary (Camelus dromedarius) trio with Bedouins at sunset, Oasis Dakhia, Great Sand Sea, Sahara Desert, Egypt

Gerry Ellis / African Lion (Panthera leo) kill surrounded by tourists, Tanzania border, Kenya

Konrad Wothe / Flight safari, Okavango Delta, Botswana

Konrad Wothe / Safari airplane flying over the flooded Okavango Delta, Botswana

Tui De Roy / Glacier with tourist expedition in inflatable zodiac, southern Greenland Fjords, Greenland

Colin Monteath / Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Hiker, Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Mountaineer enjoying the view of Mt Everest and the Himalayan Mountains at sunset from Gokyo Ri, Khumbu, Nepal

Yva Momatiuk & John Eastcott / Lone hiker walking along the base of a sandstone butte strong pattern of wavy lines in petrified sand dunes are exposed by erosion, Vermilion Cliffs National Monument, Colorado Plateau, Utah

Yva Momatiuk & John Eastcott / Lone hiker walking on colorful sandstone strong pattern of wavy lines in petrified sand dunes are exposed by erosion, Vermilion Cliffs National Monument, Colorado Plateau, Utah

Yva Momatiuk & John Eastcott / Alaska Range in spring snow, photographer resting in valley below mountains, Denali National Park and Preserve, Alaska

Gerry Ellis / Mosquito Cove at dusk, Antigua, Caribbean

Gerry Ellis / Hurricane Bay, Virgin Islands National Park, Saint John Island, Virgin Islands, Caribbean

Colin Monteath / Humpback Whale (Megaptera novaeangliae) observed by tourists in a zodiac boat near Melchoir Island, Antarctic Peninsula, Antarctica

Colin Monteath / Climber enjoying view of Mt CookÆs Caroline Face from Ball Pass, Mt Cook National Park, New Zealand

Michael & Patricia Fogden / Brilliant trail with hiker, Monteverde Cloud Forest Reserve, Costa Rica

Tim Fitzharris / Tourists viewing Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, Wyoming

Gerry Ellis / Sandstone blocks of White Pyramid of King Snefru at Dakshur, Egypt

Gerry Ellis / The pyramids of Giza in evening light, Giza, Egypt

Colin Monteath / Climber on the summit of Pik Kommunizma at 7,500 meters elevation, highest mountain in the Pamirs, a mountain range in Tajikistan, central Asia

Konrad Wothe / Tourists on Russian icebreaker breaking through pack ice, Antarctica

Konrad Wothe / Ice climber on Perito Moreno Glacier, Los Glaciares National Park, Argentina

Claus Meyer / Visitors explore an expansive cavern with stalactites, Vale Do Peruacu, Minas Gerais, south Cerrado savannah, Brazil

Konrad Wothe / Gray Whale (Eschrichtius robustus) breaching while tourists watch, Mexico

Konrad Wothe / Cardon (Pachycereus pringlei) cactus photographed by tourist, largest cacti in the world and may live over 200 years, Sonoran Desert, Baja California, Mexico

Matthias Breiter / Two climbers at Ruth Glacier, with Mt McKinley towering above them, Denali National Park and Preserve, Alaska

Norbert Wu / Scuba diver among colorful corals

Norbert Wu / Sipadan Island, a rich oceanic island surrounded by coral reef, Borneo

Jim Brandenburg / Canoe bow with autumn trees, Discovery Lake, Superior National Forest, Minnesota

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

Norbert Wu / Atlantic Spotted Dolphin (Stenella frontalis) swimming with Katherine Gilman, Little Bahama Bank, Caribbean

Flip Nicklin / Orca (Orcinus orca) leaping, watched by tourists from Stubbs Island charter boat, Johnstone Strait, northeast Vancouver Island, Canada

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) tails and sailboat with whale watching tour, Hawaii

Flip Nicklin / Manta Ray (Manta birostris) Flower Garden Banks National Marine Sanctuary, Louisiana, Gulf of Mexico

Mitsuaki Iwago / Cruise ship in storm, Antarctica

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) checking out tourist, Mosquera Island, Galapagos Islands, Ecuador

Michio Hoshino / Illuminated tent beneath snow-covered mountains and Aurora borealis, Alaska

Norbert Wu / Atlantic Spotted Dolphin (Stenella frontalis) playing with Poppi Gilman, Little Bahama Bank, Caribbean

Flip Nicklin / Gray Whale (Eschrichtius robustus) touched by tourists, San Ignacio Lagoon, Baja California, Mexico

Tui De Roy / Tourists cruising Beagle Channel beneath Romanche Glacier, Patagonia, Chile

Flip Nicklin / Southern Right Whale (Eubalaena australis) researchers Roger Payne, right, Jim Darling, left, and Gustavo Alvarez Colombo, center, watching individual dive, Peninsula Valdez, Argentina

Norbert Wu / Snorkeler Deanna Mah at The Baths, British Virgin Islands

Flip Nicklin / Atlantic Spotted Dolphin (Stenella frontalis) pod with female snorkeler, Bahamas

Fred Bavendam / Butterfly Perch (Caesioperca lepidoptera) and diver swimming amidst Gorgonian Sea Whips, Fans and various kinds of Sponges at 40 meters depth, Tasman Peninsula, Tasmania, Australia