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Grizzly Bear
Image Credit
Janko Ferlic
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Playful brown bear cubs, Katmai National Park, Alaska
Image Credit
Martha Scott
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E.O. Wilson and Tom Lovejoy
Image Credit
Getty Images, United Nations Foundation/YouTube
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Jamie Rappaport Clark with Gray Jay - Churchill
Image Credit
Jim Clark
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Wading flock, Everglades National Park, Florida
Image Credit
Bill Lea
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Peregrine Falcon Flying over Water
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Ken Griffiths / iStockphoto