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一说到南极洲，人们立刻会在脑海里浮现出一个冰雪覆盖的世界和一群憨态可掬的企鹅。企鹅是南极洲的“土著居民”，是南极的象征。那么，企鹅真正的老家在什么地方？企鹅的祖先会不会飞？企鹅是由什么动物进化而来的？这些问题至今仍然是未解之谜。有的科学家认为，在大约距今
When it comes to Antarctica, people immediately start to emerge in their minds a snow-covered world and a group of naive penguins. Penguins are “indigenous peoples” in Antarctica and are symbols of the Antarctic. So where is penguin's real home? Penguin ancestors will not fly? What animal evolved from the penguin? These questions are still unsolved mysteries. Some scientists think it is around now