By far the largest jellyfish in existence, the lion's mane jelly can measure as long as 120 feet. It is a fearsome, fascinating creature. Something of a gentle giant, lion's mane jellies will ...

As beach season gets underway, reports are already emerging of jellyfish sightings and stings. Lion's Mane jellyfish were spotted in Dublin, Ireland; several beaches in Mexico's Sinaloa state were ...

The main species of jellyfish you're likely to encounter on Welsh beaches are: the lion's mane, compass, barrel or root mouth, blue, moon, by-the-wind-sailor, portuguese man-o-war and mauve ...