the beautiful and mysterious jellyfish, known scientifically as medusozoa, is a frequent resident of rio's beaches - they are particularly prevalent in hot climates, so rio's soaring summer temperatures usher in large migrations of the creatures.

the burns that they inflict can cause severe allergic reactions and consequent hives, but in most cases the poison has a very low toxicity level - a local may suggest applying vinegar to the wound tends to reduce the burning sensation and any other discomfort - no matter what immediate response one may adopt, it is always advised to seek medical assitance.