For a decade only native red squirrels lived on Wales’ Anglesey island, following a massive cull of their invasive grey cousins. But now the greys are somehow getting back across the Menai Strait.
Dr Craig Shuttleworth is on a mission to stop them.
Video produced by Justin Rowlatt and Gwyndaf Hughes.
The post Island fights back grey squirrel invasion first appeared on EnviroLink Network.
