A giant tick commonly found across Asia and Africa has settled in rocky plateaus of northern Italy thanks to climate change, researchers said. The warming climate has shortened the winters in the mountainous Italian province of Trieste, which has enabled populations of the tick Hyalomma marginatum to colonize the area, the Civic Museum of Natural History said this month. “Single specimens of this tick originating from hot and dry environments of the southern Mediterranean had already been detected in the past, brought by migratory birds or by the livestock trade, but so far the cold winters ha…