Steven Kazlowski / North American porcupine (Erethizon dorsatum) pup feeds on Alaskan high brush cranberries in the foothills of the Takshanuk Mountains, South-East Alaska, USA
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Roland Seitre / Baby Rothschild's Porcupine (Coendou rothschildi) on the palm of conservation volunteer. La Marinas Wildlife Rescue Centre, Costa Rica, 2008.
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Roland Seitre / Baby Rothschild's Porcupine (Coendou rothschildi) being bottle-fed. La Marinas Wildlife Rescue Centre, Costa Rica, 2008.
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Alex Mustard / Spotted porcupinefish (Diodon hystrix) swimming in open water above a coral reef, West Bay, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.
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Rod Williams / North American Porcupine (Erethizon dorsatum). Captive. Endemic to North America. Captive. UK, May.
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Jerry Monkman / Kayaker about to enter the water, Porcupine Islands, Acadia National Park, Maine, USA. Model Released. June 2008
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Jerry Monkman / Kayaker about to enter the water, Porcupine Islands, Acadia National Park, Maine, USA. Model Released. June 2008
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Thomas Lazar / Aerial view of Little Carp River and early autumn woodland, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Tim Fitzharris / Common Porcupine (Erethizon dorsatum) eating an apple, North America
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Konrad Wothe / Common Porcupine (Erethizon dorsatum), North America
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Peter Blackwell / Back view of Crested porcupine {Hystrix cristata} walking away, Central Kenya
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Tim Fitzharris / Common Porcupine (Erethizon dorsatum) portrait, Montana
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Gerry Ellis / Common Porcupine (Erethizon dorsatum) climbing tree, North America
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Tim Fitzharris / Common Porcupine (Erethizon dorsatum) feeding on fruit, Montana
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Matthias Breiter / Common Porcupine (Erethizon dorsatum) in willow tree near the Denali highway, Alaska
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Flip Nicklin / Long-spine Porcupinefish (Diodon holocanthus) in defense posture, North America
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Michio Hoshino / Caribou (Rangifer tarandus) of the Porcupine Herd climb Brooks Range foothills at midnight during migration, Alaska
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Michael Quinton / Common Porcupine (Erethizon dorsatum) feeding on Pussy Willow (Salix discolor) in spring, Alaska
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Michael Quinton / Common Porcupine (Erethizon dorsatum) sitting in a tree in winter, Yellowstone National Park, Wyoming
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Michael Quinton / Common Porcupine (Erethizon dorsatum) feeding on Pussy Willow (Salix discolor) in spring, Alaska
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Fred Bavendam / Porcupinefish (Diodon nicthemerus) swallows water to puff itself up and points its spines outward as a defense against predators, South Australia
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LYNN M. STONE / North american porcupine in tree in winter, USA.
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Steven Kazlowski / North American porcupine (Erethizon dorsatum) pup feeds on Alaskan high brush cranberries in the foothills of the Takshanuk Mountains, South-East Alaska, USA
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Claudio Contreras / North American Porcupine (Erethizon dorsatum), Janos Biosphere Reserve, northern Mexico, February.
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Konrad Wothe / North American porcupine with young (Erethizon dorsatum) Alaska, USA, July
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Sebastian Kennerknecht / Indian Crested Porcupine (Hystrix indica) at night, Hawf Protected Area, Yemen
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Sebastian Kennerknecht / Indian Crested Porcupine (Hystrix indica) at night, Hawf Protected Area, Yemen
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Roland Seitre / Baby Rothschild's Porcupine (Coendou rothschildi) climbing tree trunk. Captive. La Marinas Wildlife Rescue Centre, Costa Rica, 2008.
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Roland Seitre / Conservation volunteer with a baby Rothschild's Porcupine (Coendou rothschildi). La Marinas Wildlife Rescue Centre, Costa Rica, 2008.
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Roland Seitre / Conservation volunteer with a baby Rothschild's Porcupine (Coendou rothschildi). La Marinas Wildlife Rescue Centre, Costa Rica, 2008.
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Tony Phelps / African / Cape crested porcupine (Hystrix africaeaustralis) released from leopard trap, DeHoop NR, Western Cape, South Africa, December
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Rod Williams / North American Porcupine (Erethizon dorsatum). Captive. Endemic to North America. Captive. UK, May.
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Pete Oxford / Porcupine fish (Diodon hystrix) Bonaire, Netherlands Antilles, Caribbean
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Mark Jones / Crested Porcupine (Hystrix cristata) digging, Laikipia, Kenya
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Matthias Breiter / Common Porcupine (Erethizon dorsatum) feeding on leaves, Haines, Alaska
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Matthias Breiter / Common Porcupine (Erethizon dorsatum) feeding on leaves, Haines, Alaska
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Matthias Breiter / Common Porcupine (Erethizon dorsatum) feeding on leaves, Haines, Alaska
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Pete Oxford / Long-spine Porcupinefish (Diodon holocanthus) in Stove Pipe Sponge (Aplysina archeri), Bonaire, Netherlands Antilles, Caribbean
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Nature Production / African Crested Porcupine (Hystrix cristata) mother and young, captive, Tobu Zoo, Saitama, Japan
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Nature Production / African Crested Porcupine (Hystrix cristata) young, captive, Tobu Zoo, Saitama, Japan
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Jeff Vanuga / Quagmire Group thermal pools in Porcupine Hills Geyser Basin. Yellowstone National Park, Wyoming, August 2009.
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Birgitte Wilms / Porcupinefish (Diodon sp), Indonesia
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Juergen Freund / RF- Globefish (Diodon nicthemerus). Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)
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Fabio Liverani / Woman walking her two domesticated Crested Porcupines (Hystrix cristata) along a road, Sri Lanka. June 2010
Jerry Monkman / Couple sea kayaking near Sheep Porcupine Island in Acadia National Park, Maine, USA, September 2009. Model released.
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Jerry Monkman / Couple sea kayaking near Sheep Porcupine Island in Acadia National Park, Maine, USA, September 2009. Model released.
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Jerry Monkman / Couple sea kayaking near Sheep Porcupine Island in Acadia National Park, Maine, USA, September 2009. Model released.
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Jerry Monkman / Couple sea kayaking near Sheep Porcupine Island in Acadia National Park, Maine, USA, September 2009. Model released.
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Michael Durham / Brazilian Porcupine (Coendou prehensilis), native to Brazil, Argentina, Venezuela, the Guyanas, and Bolivia
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Michael Durham / Brazilian Porcupine (Coendou prehensilis), native to Brazil, Argentina, Venezuela, the Guyanas, and Bolivia
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Michael Durham / Brazilian Porcupine (Coendou prehensilis), native to Brazil, Argentina, Venezuela, the Guyanas, and Bolivia
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Michael Durham / Brazilian Porcupine (Coendou prehensilis), native to Brazil, Argentina, Venezuela, the Guyanas, and Bolivia
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Luiz Claudio Marigo / Prehensile tailed porcupine (Coendou prehensilis) sniffing tree, forest of Sierra of Baturita, municipality of Mulungu, Ceara¡ State, Northeastern Brazil.
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Luiz Claudio Marigo / Prehensile tailed porcupine (Coendou prehensilis) hanging from tree, forest of Sierra of Baturita, municipality of Mulungu, Ceara¡ State, Northeastern Brazil.
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Luiz Claudio Marigo / Prehensile tailed porcupine (Coendou prehensilis) sniffing air, forest of Sierra of Baturita, municipality of Mulungu, Ceara¡ State, Northeastern Brazil.
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Nick Garbutt / Young male Bengal tiger (Panthera tigris tigris) around 20 months (late April 2009) with porcupine quills stuck in cheeks, Tulsi's offspring, Bandhavgarh NP, India
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Fred Bavendam / Porcupinefish (Diodon nicthemerus), Edithburg, Australia
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Jerry Monkman / Kayak on shore, Porcupine Islands, Acadia National Park, Maine, USA. Model Released. June 2008
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Jerry Monkman / Kayak on shore, Porcupine Islands, Acadia National Park, Maine, USA. Model Released. June 2008
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Jerry Monkman / Frenchman Bay and the Porcupine Islands at sunrise as seen from Cadillac Mountain, Acadia National Park, Maine, USA, July 2008
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Jerry Monkman / Frenchman Bay and the Porcupine Islands as seen from Cadillac Mountain at dawn, Acadia National Park, Maine, USA, July 2008
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Jerry Monkman / Kayak on shore, Porcupine Islands, Acadia National Park, Maine, USA. Model Released. June 2008
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Jerry Monkman / Sheep Porcupine Island, Acadia National Park, Maine, USA, June 2008
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Pete Oxford / Long-spine Porcupinefish (Diodon holocanthus) uninflated on ocean floor, Isabella Island, Galapagos Islands, Ecuador
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Michael Quinton / Common Porcupine (Erethizon dorsatum) quills, Slana, Alaska
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Thomas Marent / Malayan Porcupine (Hystrix brachyura), Thailand
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Thomas Marent / Malayan Porcupine (Hystrix brachyura) walking at night, Thailand
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Thomas Marent / Malayan Porcupine (Hystrix brachyura) walking at night, Thailand
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Jerry Monkman / Frenchman Bay at sunrise, from Cadillac Mountain, Porcupine Islands, Acadia NP, Maine, USA
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TJ Rich / Bengal Tiger {Panthera tigris tigris} looking alert, note Porcupine quill stuck in neck, Ranthambhore NP, Rajasthan, India
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Thomas Lazar / Aerial view of mixed deciduous and coniferous trees in early autumn, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Green moss and fungi growing on large fallen tree trunk in virgin mixed hardwood forest, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Rocky shoreline of Lake Superior, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Upland Sugar Maple (Acer saccharum) forest in autumn, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Green moss and fungi growing on large fallen tree trunk in virgin mixed hardwood forest, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Aerial view of Little Carp River and early autumn woodland, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Little Carp River and autumn woodland, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Pebbles on Lake Superior shoreline, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Thomas Lazar / Sugar Maple (Acer saccharum) and Pine trees in autumn, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA
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Steven Kazlowski / Reindeer / caribou (Rangifer tarandus) scratching using antlers. Porcupine herd, Denali NP, Alaska
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Flip Nicklin / Long-spine Porcupinefish (Diodon holocanthus) inflated in defensive posture, North America
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Kirkendall-Spring / Waterfall on the Presque Isle River, Porcupine Mountains Wilderness State Park, Michigan, USA