The many-ribbed jellyfish can grow up to seven inches across and has delicate tentacles surrounding its bell. On the ...

Osamu Shimomura, a Japanese citizen, was the first to isolate GFP from the crystal jellyfish, discovering that the protein glowed bright green under ultraviolet light. American scientist Martin ...

The most commonly spotted were the huge barrel jellyfish - but rarer warm-water crystal jellyfish were also seen. The barrel, or “dustbin-lid”, jellyfish can grow to more than one meter in ...