What do a peckish bee-eater, shaggy bison going head-to-head in snow and pelicans dancing in a pristine lake all have in common?

一只饥不择食的蜂虎鸟，两头在雪地里相互抵角的长毛野牛，以及在一片原始湖泊中齐舞的鹈鹕们，它们有什么共同点吗？