13th Annual Smithsonian Magazine Photo Contest Natural World

In this photo you see the relationship between a gronco and a prawn, gronco opens his mouth and the shrimp cleans it from pests or food scraps

Photo Detail
Date Taken: 09.2015
Date Uploaded: 09.2015
Photo Location: Capo Noli(Liguria sea), Italy
Camera: E-PL1
Copyright: © Walter Bassi