Went snorkeling in the eastern Atlantic or Mediterranean and spotted a huge jellyfish? It may just have been Rhizostoma pulmo, also known as the barrel jellyfish or (rather appropriately, in…

Went snorkeling in the Mediterranean and spotted a moray eel head sticking out from under a rock? Congrats, you likely just met Muraena helena, better known as the Mediterranean moray!…

The ocean is like an enormous puzzle full of fascinating pieces, and jellyfish are some of the most intriguing. It’s hard to ignore them, and indeed, we should pay them…

Spotted (or got stung by) a long-tentacled jellyfish with a distinctive circular pattern on its bell? If you were in the northern Atlantic, North Sea or Mediterranean, the culprit was…