A type of jellyfish that is rarely seen in UK waters ... more commonly referred to as the "crystal jelly". The species, seen at Cadgwith, on the Lizard Peninsula in west Cornwall, is more commonly ...

Each morning around 6, when dawn brightens the eastern sky, they begin to swim toward the light. Pumping water through their bells, these jellyfish use a type of jet propulsion to follow the ...

Despite their name, jellyfish aren’t ... Transparent and colorless most of the time, the crystal jelly can also light up like a firefly—to what end isn’t certain. The genes responsible ...

The most commonly spotted were the huge barrel jellyfish - but rarer warm-water crystal jellyfish were also seen. Jellyfish populations vary naturally over time - but climate change warming the UK ...