15th Annual Smithsonian Magazine Photo Contest Natural World
The guest

A curious symbiosis that I rarely happened to be able to observe. A small emperor shrimp (Periclemenes imperator) uses a large nudibranch (Cerathosoma sp.) as a "means of transport".

Photo Detail
Date Taken: 03.2017
Date Uploaded: 10.2017
Photo Location: Indonesia
Camera: E-M1
Copyright: © ALEX VARANI