Finding highly venomous box jellyfish that are almost invisible in water is not an easy task—but researching them is crucial so that we can learn how to safely avoid them. Stings from these "sea-wasps" are extremely painful and can be fatal. Knowing more about box jellyfish helps us know where to expect them, when to expect them, and how we can minimize the risk of encountering them while out for what should be a pleasant swim. ...read more read less