Not so long ago, these whales faced a graver threat. 不久之前 这些鲸鱼面临着更严重的威胁
But a mother never lets her calf stray too far... 但母亲不会让幼鲸跑得太远
..and will always offer a welcome embrace. 并总会提供一个欢迎的拥抱
She's producing as much as 200 litres of milk a day. 雌鲸每天分泌多达200升乳汁
..seeking the shelter of this bay at a key time in their lives. 在生命中的关键节点前来寻求这片海湾的庇护
of a 5,000 mile journey across open ocean. 已经接近尾声
..to a special place she has known all her life. 去往一个它一生都熟悉的特殊地方