我們的星球第二季 - 高清線路D ᴴᴰ 線路 - 第02集

　　From the Emmy Award-winning team behind Planet Earth and Our Planet comes Our Planet II, Narrated by David Attenborough. At any given moment on planet Earth, billions of animals are on the move. Our Planet II unravels the mysteries of how and why animals move and migrate to reveal some of the most spectacular and dramatic stories in the natural world.