Northwest Crown Fire Experiment, Northwest Territories, Canada
(Photograph used by permission of the USDA Forest Service.)
CC BY 2.5
Bunk S: <i>World on Fire.</i> PLoS Biol 2/2/2004: e54. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371%2Fjournal.pbio.0020054.g001">10.1371/journal.pbio.0020054.g001</a>