Ynghylch

It's easy to see where the lion's mane jellyfish gets its name from: the long flowing tentacles that surround the bell have all the beauty and bite of a lion. Up to 3m in length, these tentacles are packed with stinging cells and are used to catch their favourite prey: fish and other smaller jellyfish. Lion's mane jellyfish give a very nasty sting, so consult a doctor if swelling or weals are severe. In the meantime, scrape the area with a clean stick or remove the tentacle with tweezers if you have them to hand, then rinse the area with warm to hot water to reduce swelling.