英语听力：从南极到北极 1

A hundred years ago, there are one and a half billion people on earth. Now, over six billion crowd our fragile planet. But even so, there are still places barely touched by humanity. This series will take you to the last wildernesses and show you the planet and its wildlife as you have never seen them before.

From Pole to Pole

Imagine our world without sun. Male Emperor Penguins are facing the nearest that exists on Planet Earth winter in Antarctica. It’s continuously dark and temperatures drop to minus seventy degrees centigrade.