A fallow deer is seen on the beach of Croatia's Island Badija on July 17, 2018. The species was brought on the Adriatic island in the 1950s. (Xinhua/Davor Puklavec)

A fallow deer is seen on the beach of Croatia's Island Badija on July 17, 2018. The species was brought on the Adriatic island in the 1950s. (Xinhua/Davor Puklavec)

A fallow deer is seen on the beach of Croatia's Island Badija on July 17, 2018. The species was brought on the Adriatic island in the 1950s. (Xinhua/Davor Puklavec)

A fallow deer is seen on the beach of Croatia's Island Badija on July 17, 2018. The species was brought on the Adriatic island in the 1950s. (Xinhua/Davor Puklavec)