Jellyfish have been spotted on England's coast, and people spending time by the sea this summer will need to be careful. In recent years, many coastal areas have reported jellyfish swarms. Jellyfish are interesting sea creatures that don't have brains or hearts. They have long tentacles and sometimes long, stringy tails. The types of jellyfish found in England's waters are usually harmless, but it's still important to be careful. If you see a jellyfish, it's best not to touch it. Experts say that some types of jellyfish can cause skin redness and itching. Jellyfish have memories, but they don't have brains! Compass jellyfish are often seen on England's coast and are usually harmless, but be careful because they can still give a painful sting.