Australia is well-known for its myriad deadly creatures, but the peanut-sized Irukandji remains rather mysterious.
澳大利亚以种类繁多的致命生物而闻名，但花生般大小的伊鲁坎吉水母仍旧是一种很神秘的物种。
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In 2002, two tourists were killed in separate incidents after being stung by the tiny creatures off northeast Australia - the first recorded Irukandji fatalities.
Progressive symptoms of fever, headache, lower back pain, chest tightness and high blood pressure led the doctor to diagnose that Southall had been stung by an Irukandji jellyfish.