Young Mediterranean horse mackerel, Trachurus mediterraneus, around Mediterranean fried egg jellyfish, Cotylorhiza tuberculata. The young fi

- Image ID: KEGY1K
Young Mediterranean horse mackerel, Trachurus mediterraneus, around Mediterranean fried egg jellyfish, Cotylorhiza tuberculata. The young fi
Paulo Oliveira / Alamy Stock Photo
Image ID: KEGY1K
often associated with jellyfish taking refuge within or close to the tentacles. The relationship between the two is not truly symbiotic; the small fish simply take shelter to protect themselves from predators that are afraid to approach the urticant tentacles of the jellyfish. Mediterranean Sea, Spain