The one-week-old European bison calf is seen with his mother in their enclosure in the Nyiregyhaza Animal Park in Nyiregyhaza, Hungary, 18 May 2020. The European bison is extinct in nature more than a hundred years ago. A total of 56 bison remained in the zoos, and as a result of their collaboration, the bison's breeding and continuous resettlement began. (Photo by Attila Balazs/EPA/EFE)
