Sea enemy: Mnemiopsis leidyi has invaded the Adriatic and is moving in on ItalyMarinko BabićBy Nenad Jarić DauenhauerA voracious warty comb jelly that infamously devastated Black Sea fisheries is now thriving  in the coastal areas of the northern Adriatic. The arrival of these invasive animals in the Adriatic was first noted in 2005. But this year...