While some jellyfish species seem to thrive on human disturbance—off the coast of Namibia, for example, overfishing may have tipped the ecosystem into a new state dominated by compass and ...

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish ... fish and other small creatures. For humans, a man-of-war sting is ...

Visit the NHS website for information on what to do if you are stung by a jellyfish or other sea creature. But not all jellyfish sting and some jellyfish stings aren’t harmful to humans. Some ...