George Sanker / Pond in forest, Baxter State Park, Maine, USA, October 2007
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Jack Dykinga / Rays of low sunlight through Douglas fir (Pseudotsuga menziesii) trees in early morning fog, Redwood State and National Parks, California, USA. May.
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Jack Dykinga / Rays of low sunlight through Douglas fir (Pseudotsuga menziesii) trees in early morning fog, Redwood State and National Parks, California, USA. May.
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Jack Dykinga / Rays of low sunlight through Douglas fir (Pseudotsuga menziesii) trees in early morning fog, Redwood State and National Parks, California, USA. May.
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Doug Wechsler / Poison ivy vine (Toxicodendron radicans) climbing up White oak tree (Quercus) Fort Washington State Park, Pennsylvania, USA October
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Doug Wechsler / Winnow ant (Aphaenogaster sp) worker carrying pupa to nest, Washington State Park, Pennsylvania, USA July
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Doug Wechsler / Winnow ant (Aphaenogaster sp) worker carrying beetle pupa to nest, Washington State Park, Pennsylvania, USA July
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Doug Wechsler / Winnow ant (Aphaenogaster sp) worker carrying beetle pupa to nest, Washington State Park, Pennsylvania, USA July
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Doug Wechsler / Bald cypress (Taxodium distichum) in pond, at north end of cypress range, Trap Pond State Park, Delaware, USA
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Doug Wechsler / Bald Cypress in autumn (Taxodium distichum) at north end of cypress range, DE, Trap Pond State Park
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Doug Wechsler / Chicken-of-the-woods fungi (Laetiporus) Fort Washington State Park, Pennsylvania, USA
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Lynn M Stone / RF - Harlequin ducks (Histrionicus histrionicus) swimming offshore on Atlantic. Beavertail State Park, Jamestown, Rhode Island, USA. January. (This image may be licensed either as rights managed or r...