英语听力:自然百科 大迁徙之繁衍生息 Need to Breed—17(在线收听

 Even fearsome wasps high in treetops, are no match for the implacable ants. They watch helplessly as their own larvae are stripped from their honeycomb cribs. Now, the porters take up their burdens, they carry the movable feast back to the unquenchable young. Generations of ants will come and go. But the restless hunger of their sisterhood will be immortal. 

 
On the Savannas of the Sudan, the clash of males is reaching a fever pitch. A male cub’s life boils down to this.
  原文地址:http://www.tingroom.com/lesson/zrbaike/2011/260343.html