Donald M. Jones / Black Bear (Ursus americanus) yearling cub up in a Lodgepole Pine (Larix laricina), Alberta, Canada
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Sebastian Kennerknecht / Lodgepole Pine (Pinus contorta) trees in winter, Mammoth Hot Springs, Yellowstone National Park, Wyoming
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Sebastian Kennerknecht / Lodgepole Pine (Pinus contorta) trees along river, Tuolumne River, Grand Canyon of the Tuolumne, Yosemite National Park, Sierra Nevada, California
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Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) killed Lodgepole Pine (Pinus contorta), Grand Teton National Park, Wyoming
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Jeff Foott / Lodgepole Pine (Pinus contorta) tree with pheromone packet to deter an attack from Mountain Pine Beetle (Dendroctonus ponderosae), Colorado
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Jeff Foott / Lodgepole Pine (Pinus contorta) forest killed by Mountain Pine Beetle (Dendroctonud ponderosae), Colorado
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Jeff Foott / Lodgepole Pine (Pinus contorta) forest killed by Mountain Pine Beetle (Dendroctonud ponderosae), Colorado
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Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) killed Lodgepole Pine (Pinus contorta) forest, Colorado
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Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) pupa in Lodgepole Pine (Pinus contorta), Wyoming
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Jeff Foott / Lodgepole Pine (Pinus contorta) pitch tubes, showing where Mountain Pine Beetle (Dendroctonus ponderosae) attacked tree, and tree tried to pitch it out, Colorado
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Jeff Foott / Mountain Pine Beetle (Dendroctonus ponderosae) killed Lodgepole Pine (Pinus contorta) forest with some healthy trees, Colorado
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Donald M. Jones / Black Bear (Ursus americanus) yearling cub up in a Lodgepole Pine (Larix laricina), Alberta, Canada
