Wolf lichen,(Letharia vulpina),covering trunk of a white fir,(Abies concolor),in the Sierra Nevada mountains of Sequoia National Park,California. The lichen produces a toxin,vulpinic acid. Wolf lichen also occurs in northern Europe,where it was once used to poison foxes and wolves | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / GREGORY G. DIMIJIAN, M.D. |
Taille de l’image : | 3413 px × 5120 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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