Tens of thousands of Rhizostoma pulmo jellyfish have appeared on the Black Sea coast, a common phenomenon at the end of summer.

At the end of summer, the Black Sea was invaded by tens of thousands of Rhizostoma pulmo jellyfish, a natural phenomenon that occurs due to warm waters. These jellyfish, which are not dangerous, can only cause stinging sensations. Veterinarians warn swimmers to wear goggles to avoid direct contact. Although they can be unpleasant, jellyfish do not affect the environment and are part of a normal biological cycle, but water warming could lead to an increase in their numbers in the future.