英语听力：自然百科 冰冻星球 前往地球尽头—16（在线收听）

 The seal is now what the killer wanted, but the hunt is far from over. They need to wrap their prey by the tail while avoiding its snapping jaws. Only them will they be able to pull it down and drown it. Side swipes create farther underwater turbulence,  a new tactic. Growing bubbles gives cover for others to lunge at the seal's tail. Somehow the seal manages to reach a tiny ice floe. The killers could easily grab it, but now this seems to become again. The seal's life hangs on a roll of the ice. Yet again, the pod joins forces to dislodge the seal. The seal seizes a chance to escape.