Peter Cairns / Wood patterns in Lodgepole pine (Pinus contorta) Yellowstone National Park, Wyoming, USA, January.

Donald M. Jones / Black Bear (Ursus americanus) yearling cub up in a Lodgepole Pine (Larix laricina), Alberta, Canada

Michael Quinton / Yellowstone fire, sprouting wildflower near burnt Lodgepole pine cone, Yellowstone National Park, Wyoming

Claudio Contreras / Sierra lodgepole pine (Pinus contorta var murrayana) forest. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico. 2011.

Claudio Contreras / Sierra lodgepole pine (Pinus contorta murrayana) forest. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

Phil Savoie / Lodgepole pine forest (Pinus contorta) around Hylaite lake, with Bridger mountains, Rocky Mountains, Montana, USA, July 2011.

Sebastian Kennerknecht / Lodgepole Pine (Pinus contorta) trees in winter, Mammoth Hot Springs, Yellowstone National Park, Wyoming

Jeff Foott / Aerial photograph of Lodgepole Pine forest (Pinus contorta) with dead trees killed by Mountain pine beetle (Dendroctonud ponderosae) Clear cut areas only have young trees. Granby, Colorado, USA. Octob...

Jeff Foott / Lodgepole pine forest (Pinus contorta) with trees killed by Mountain pine beetle (Dendroctonus ponderosae) Rocky Mountain National Park, Colorado, USA. October. The current outbreak of mountain pine b...

Jeff Foott / Mountain pine beetle (Dendroctonus ponderosae) pupa in Lodgepole Pine tree, Wyoming. The current outbreak of mountain pine beetles has been particularly aggressive. This is due to climate change, mo...

Jeff Foott / Mountain pine beetle (Dendroctonus ponderosae) male and female in Lodgepole Pine tree, Grand Teton National Park, Wyoming, USA, August. The current outbreak of mountain pine beetles has been particula...

Jeff Foott / Mountain pine beetle (Dendroctonus ponderosae) in Lodgepole Pine, Grand Teton National Park, Wyoming, USA, August. The current outbreak of mountain pine beetles has been particularly aggressive. This...