the cats have been pushed to the very edge of extinction by hunting and the destruction of their habitat. 由于盗猎和栖息地遭到破坏 这些大猫已经被推到了灭绝的边缘
the winter makes hunting very difficult. 冬天使得狩猎变得相当困难
Now the mother can start hunting for the seals they must have, 现在母熊将猎杀海豹 获取紧需的食物