Wild Frontiers
photography by Hans Wolkers
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Travel and nature photos
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Alaska Coast Fall
Alaska Coast Spring
Alaska inland
Harp Seals
Hooded Seals
West Coast
Yellowstone Spring
Yellowstone Fall
Yellowstone Winter
Rocky Mountains
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Mono Lake
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Vermillion Cliffs I
Vermillion Cliffs II
New Mexico
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> South America
South Georgia Icy Landscapes
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South Georgia Marine Mammals
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Northern Chile
Venezuela Birds
Venezuela Divers
Venezuela People
> Europe North
Svalbard Icy Landscapes
Svalbard Land Mammals
Svalbard Marine Mammals
Svalbard Polar Bears
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Svalbard Divers
Norway Winter
Iceland Winter
Iceland Coast
Iceland Inland
European Bison
Finland Birds
Finland Bears
> Europe South
The Netherlands National Park
Croatia
Lanzarote
Tenerife
La Palma Bloom
Destroyed village WWII
Sicily Culture
Sicily Nature
> Chernobyl
Ground Zero
Pripyat
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> Middle East
Jordan
Jordan Petra
Jordan Wadi Rum
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New Zealand South
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Christmas Island
> Asia
Japan Swans
Japan Eagles
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Indonesia Marine life
India
> Africa
Madagascar Lemurs
Madagascar Reptiles
Madagascar People
Industrial and science photos
> Industrial
Abandoned mine
Steel Car Parts Production
Wastewater Treatment
Dairy cows and poultry
Viniculture in The Netherlands
From Egg to Egg Powder
The Making of Goat Cheese
Agricultural Plants
Biodegradable Plant Pots
> Science
Arctic Research
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Wild Algae
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Horseshoe Crab
Vanishing Eel
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