Butterflies of various species drinking salts from mineral-rich river clay, a behaviour know as &#39;puddling&#39;. On the banks of the Manu River, Manu Biosphere Reserve, Amazonia, Peru. November.  ,  Animal,Wildlife,Arthropod,Insect,Animalia,Animal,Wildlife,Hexapoda,Arthropod,Invertebrate,Hexapod,Arthropoda,Insecta,Insect,Lepidoptera,Lepidopterans,Latin America,South America,Peru,Rainforest,Tropical rainforest,Drinking,Reserve,Forest,Puddling,Protected area,Manu National Park,UNESCO Biosphere Reserve,Manu Biosphere Reserve,  ,  Alex  Hyde