Wolf Lichen (IMAGE)
Caption
Wolf lichen (<i>Letharia vulpine</i>), a lichen species studied by a team of University of Montana researchers, show that some of the world's most common lichen species actually are composed of three partners, not the widely recognized two.
Credit
Photo by Tim Wheeler, <a target="_blank"href="http://timwheelerphotography.com">timwheelerphotography.com</a>.
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