大多数鲸鱼群居。
筛选出不同的模式需要耗费些时日；在这十一年期间，考察组人员总共从穿越南太平洋的六组鲸鱼群中聆听了745首歌。
Picking out the patterns took a while; the team had to listen to 745 songs in total from six whale populations across the South Pacific over the 11-year period.
为了测试他的这感觉，帕克的团队于1997年到2002年再夏威夷海域附近观察了42个竞争性的鲸鱼群，这些一条雌鲸被多条雄鲸所包围。
To test this hunch, Pack's team observed 42 competitive groups--those with one female surrounded by varying numbers of males--in the waters around Hawaii from 1997 to 2002.
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