Rising sea temperatures mean new marine life will enter Welsh waters and some of it will give you a painful sting if you get ...

Ocean drifters once thought identical are actually several species. Genetics and ocean modeling uncover unexpected isolation.

Jellyfish populations have 'exploded' off the UK coast, with a marine biologist warning that stingrays could be next. As the waters off England, Ireland, Wales and even as far north as Scotland ...

Georgina Some jellyfish species have a bad reputation for scaring away tourists, clogging up fishing nets, and even blocking power station pipes. Neil ...

The lion's mane jellyfish sting can be particularly painful and expects have warned against getting close to it ...