For three summers in a row, researchers working in the Mai Po Nature Reserve noticed something unusual drifting through the ...

The Portuguese man-of-war, or Physalia, is a jelly-like creature that uses a special gas-filled balloon to float on the sea surface. Physalia inhabits the area where the ocean meets the atmosphere, in ...

Jellyfish numbers rise My son and I saw this last year when we were at the EuroScience conference (highly recomennded) in Barcelona (ditto). The beaches had warnings of whole rafts of these.