This very rare and wonderful picture from South West Norway shows polyps going through the process of strobilation (you can learn more about this process here). This photograph was taken on February 6th, 2013, which means that very soon there will young jellyfish in the water.  Very few photographers have been at the right place, at the right time, to capture wild jelly polyps going through strobilation.  Thanks so much Erling Svensen for sharing!

Photo: polyps (perhaps of Aurelia ?) strobilating on an ascidian (Ascidia mentula).  Erling Svensen reports finding lots of polyps on this species of ascidian.  These polyps are  roughly 20 meters below the surface, with water temperature at a frigid 3°C (37.4° F).