These jellyfish are 97% water and have no brain
The Cassopea jellyfish is a Cnidaria with stinging tentacles that they use to capture their food, which mainly consists of plankton. This species lives in all the seas and oceans except the polar regions, which are too cold. 97% water, they do not have a brain but their reproduction organs, four gonads, are visible due to their transparency, laid out in horseshoe shape.
- Average size: Diameter: 20 cm
- Average weight: 1 g
- IUCN red list status: Not evaluated (NE)