The moon jellyfish is easily recognizable due to its translucent, light blue bell, which often features four distinct horseshoe-shaped gonads. This species inhabits coastal waters around the world and is particularly notable for its calming, gentle pulsations as it swims, providing a mesmerizing spectacle for observers. The moon jelly’s tentacles are lined with specialized cells called cnidocytes, which contain stinging structures known as nematocysts. These allow the jellyfish to capture prey, primarily small fish and plankton, as well as defend against predators.

Beyond their ecological role, jellyfish specimens like the moon jellyfish are essential for scientific research. They serve as bioindicators of ocean health, reflecting changes in marine ecosystems due to factors like climate change and pollution. Additionally, their unique biological makeup, including the ability to regenerate lost body parts, has sparked interest in the fields of medicine and biotechnology.