https://youtu.be/7lQ6OkEFpVw Video Credit: Zoo Duisburg, F. Thaller/Newsflash This is the moment a cute baby dolphin frolics and spirals underwater with its happy mum. The young female dolphin was born at Duisburg Zoo in the city of Duisburg located in the German state of North Rhine-Westphalia at the end of September.…