Scientists say they have discovered an antidote to the sting delivered by the box jellyfish Chironex fleckeri, which is considered to be one of the most venomous animals on Earth. The antidote blocks the symptoms of a box jellyfish sting if administered to the skin within 15 minutes after contact; it was shown to suppress tissue necrosis and pain in mice and to work on human cells outside the body. Chironex fleckeri. Image credit: Guido Gautsch /...