Published on May 5, 2014
"A Julia butterfly (Dryas iulia) and a solitary bee (Centris sp.) sip tears from the eyes of spectacled caiman (Caiman crocodilus) on Costa Rica's Puerto Viejo River. Filmed by ecologist Carlos de la Rosa, Director of the La Selva Biological Research Station, in December 2013.
Carlos L de la Rosa (2014) Additional observations of lachryphagous butterflies and bees. Frontiers in Ecology and the Environment 12(4): 210"
