According to the US government quarter ton jellyfish are a threat to humanity! Apparently they are overpopulating  and must be destroyed. They are capable of damaging ships and are said to be ravaging the worlds oceans. They have also been blamed for damaging nuclear power plants, and attacking trade routes., clogging the structures with their gelatinous mass. They claim that billions of these creatures are challenging humanities title as the top consumer in the food chain... The article went so far to compare the worldwide incidence of human deaths due to jellyfish as a “9/11 each year”. I would not make this shit up.