1240 pictures found
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Antelope Canyon. The Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe, Arizona, USA.
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
Antelope Canyon. The Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe, Arizona, USA.
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Bubble-net feeding of the Humpback whales (Megaptera novaeangliae). Chatham Strait area. Alaska. USA.
© Andrey Gudkov / Biosphoto
© Andrey Gudkov / Biosphoto
Bubble-net feeding of the Humpback whales (Megaptera novaeangliae). Chatham Strait area. Alaska. USA.
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Polar Bear( Ursus maritimus ) in water along a barrier island outside Kaktovik, Every fall, polar bears (Ursus maritimus) gather near Kaktovik on the
© Sylvain Cordier / Biosphoto
© Sylvain Cordier / Biosphoto
Polar Bear( Ursus maritimus ) in water along a barrier island outside Kaktovik, Every fall, polar bears (Ursus maritimus) gather near Kaktovik on the northern edge of ANWR, Barter Island, Arctic National Wildlife Refuge, Alaska
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Polar bear (Ursus maritimus) walking on shore against the light, Barter Island, North of the Arctic Circle, Alaska.
© Patrick Kientz / Biosphoto
© Patrick Kientz / Biosphoto
Polar bear (Ursus maritimus) walking on shore against the light, Barter Island, North of the Arctic Circle, Alaska.
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Polar bear (Ursus maritimus) walking on shore against the light, Barter Island, North of the Arctic Circle, Alaska.
© Patrick Kientz / Biosphoto
© Patrick Kientz / Biosphoto
Polar bear (Ursus maritimus) walking on shore against the light, Barter Island, North of the Arctic Circle, Alaska.
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Polar bear (Ursus maritimus) female and youngs walking in water, Barter Island, North of the Arctic Circle, Alaska.
© Patrick Kientz / Biosphoto
© Patrick Kientz / Biosphoto
Polar bear (Ursus maritimus) female and youngs walking in water, Barter Island, North of the Arctic Circle, Alaska.
© Óscar Díez Martínez / Biosphoto
Pronghorns on the Prairie - Grand Teton USA
© Óscar Díez Martínez / Biosphoto
Red Fox walking in the snow - Yellowstone USA
© Óscar Díez Martínez / Biosphoto
Red Fox walking in the snow - Yellowstone USA
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Bristlecone pine multimillennial - Cedar Breaks NM Utah USA ; Older than 2000 years
Pines growing at very high altitude (3000 m) and can survive
© Jean-Philippe Delobelle / Biosphoto
© Jean-Philippe Delobelle / Biosphoto
Bristlecone pine multimillennial - Cedar Breaks NM Utah USA ; Older than 2000 years
Pines growing at very high altitude (3000 m) and can survive more than 4500 years;they are generally observed in the combat zone, where no other species can survive extreme conditions, and their roots are slowly exposed by erosion over the centuries
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Blackjack pines and Hoodoos - Bryce Canyon NP Utah USA ; Amphiteatre
Deltaic sediments of Jurassic age (Claron Formation) of sandstone, dolomite
© Jean-Philippe Delobelle / Biosphoto
© Jean-Philippe Delobelle / Biosphoto
Blackjack pines and Hoodoos - Bryce Canyon NP Utah USA ; Amphiteatre
Deltaic sediments of Jurassic age (Claron Formation) of sandstone, dolomite and marl colored by iron oxides and carved by erosion in an amphitheater of hoodoos (pinnacles) arches and bridgesThe reflected light (spectral) from sunrise sun enriched natural polychrome these high walls sometimes nearly 50 meters
© Patrick Kientz / Biosphoto
Polar bear cubs in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear and cub in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear and cub in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear and cubs in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear nursing cubs in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear cubs walking in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear cubs walking in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear cubs playing in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear cubs playing in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bears in the fog - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear lying on his back - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear sitting on snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear running in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear walking in the snow - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bear on failed tree - Barter Island Alaska
© Patrick Kientz / Biosphoto
Polar bears playing on failed tree - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Bearded seal at rest on ice - Barter Island Alaska USA
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Polar bear playing in the snow - Barter Island Alaska ; subadults
© Sylvain Cordier / Biosphoto
© Sylvain Cordier / Biosphoto
Polar bear playing in the snow - Barter Island Alaska ; subadults
© Sylvain Cordier / Biosphoto
Polar bear and young in the snow - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar Bear at moonlight - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar bear in the snow - Barter Island Alaska ; Yearling
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Polar bear playing with a branch - Barter Island Alaska ; 2 and 10 months years old cub
© Sylvain Cordier / Biosphoto
© Sylvain Cordier / Biosphoto
Polar bear playing with a branch - Barter Island Alaska ; 2 and 10 months years old cub
© Sylvain Cordier / Biosphoto
Polar bears playing on the ice - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar bear female taking the wind - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar bears at sunset - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar bears at sunset - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar bears at sunset - Barter Island Alaska
© Sylvain Cordier / Biosphoto
Polar Bear female suckling her cub - Barter Island Alaska
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Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then exhausted by a sponge.The Caribbean barrel sponge, Xestospongia muta, is a large and common member of the coral reef communities at depths greater than 10 m, and has been called the “redwood of the deep”, due to its up to 2000 year lifespan as well as its size and color. Despite its prominence, high biomass and importance to habitat complexity and reef health, very little is know about the basic biology of this massive sponge, including rates of mortality and recruitment, reproduction, growth and age. Like reef corals, this sponge is subject to bleaching and subsequent mortality.
With support from NOAA's Aquarius Reef Base at UNCW, NOAA's Coral Reef Conservation Program, and the Florida Keys National Marine Sanctuary, a research group has been monitoring populations of X. muta in the Florida Keys since 1997.
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Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then exhausted by a sponge.The Caribbean barrel sponge, Xestospongia muta, is a large and common member of the coral reef communities at depths greater than 10 m, and has been called the “redwood of the deep”, due to its up to 2000 year lifespan as well as its size and color. Despite its prominence, high biomass and importance to habitat complexity and reef health, very little is know about the basic biology of this massive sponge, including rates of mortality and recruitment, reproduction, growth and age. Like reef corals, this sponge is subject to bleaching and subsequent mortality.
With support from NOAA's Aquarius Reef Base at UNCW, NOAA's Coral Reef Conservation Program, and the Florida Keys National Marine Sanctuary, a research group has been monitoring populations of X. muta in the Florida Keys since 1997.
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Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Visualization flow of water in a sponge - Aquarius Reef Base ; Fluorescein dye is used to visualize how water is absorbed at the outside and then exhausted by a sponge.The Caribbean barrel sponge, Xestospongia muta, is a large and common member of the coral reef communities at depths greater than 10 m, and has been called the “redwood of the deep”, due to its up to 2000 year lifespan as well as its size and color. Despite its prominence, high biomass and importance to habitat complexity and reef health, very little is know about the basic biology of this massive sponge, including rates of mortality and recruitment, reproduction, growth and age. Like reef corals, this sponge is subject to bleaching and subsequent mortality.
With support from NOAA's Aquarius Reef Base at UNCW, NOAA's Coral Reef Conservation Program, and the Florida Keys National Marine Sanctuary, a research group has been monitoring populations of X. muta in the Florida Keys since 1997.
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Scientists in laboratory - Aquarius Reef Base Florida ; Dr. Chris Martens (front left), Dr.Niels Lindquist (left), UNC Chapel Hill and other members
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Scientists in laboratory - Aquarius Reef Base Florida ; Dr. Chris Martens (front left), Dr.Niels Lindquist (left), UNC Chapel Hill and other members of the saturation diver team /2011 Ocean Acidification Mission
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Tourists visiting the Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe. Antelope Canyon. Arizona. USA.
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
Tourists visiting the Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe. Antelope Canyon. Arizona. USA.
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The Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe. Antelope Canyon. Arizona. USA.
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
The Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe. Antelope Canyon. Arizona. USA.
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USA. Arizona. Antelope Canyon. Sand fall in the Upper Antelope
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
USA. Arizona. Antelope Canyon. Sand fall in the Upper Antelope Canyon, 2 to 3 m wide and 400 m long.
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USA. Arizona. Antelope Canyon. Rays of sunlight penetrating the
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
USA. Arizona. Antelope Canyon. Rays of sunlight penetrating the Upper Antelope Canyon and playing with the dust. 2 to 3 m wide and 400 m long, the canyon is managed by the Navajo Indian tribe..
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Tourists visiting the Upper Antelope Canyon, 2 to 3 m wide and
© Antoine Lorgnier / Biosphoto
© Antoine Lorgnier / Biosphoto
Tourists visiting the Upper Antelope Canyon, 2 to 3 m wide and 400 m long, managed by the Navajo Indian tribe. Antelope Canyon. Arizona. USA.
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Stunning views from the sea to the mountains and forests in the fjords of Alaska. Alaska. USA.
© Andrey Gudkov / Biosphoto
© Andrey Gudkov / Biosphoto
Stunning views from the sea to the mountains and forests in the fjords of Alaska. Alaska. USA.