One jellyfish arrived in B.C. decades ago. Thousands of clones spread to 34 waterways

Some time more than 30 years ago, a single Chinese peach blossom jellyfish made its way into a lake in British Columbia.Exactly how it arrived is not clear, researchers say – perhaps it was in aquarium water – but decades later, thousands of genetic clones of the same organism have been spotted in 34 waterways around the province.