When I first heard it I was surprised as I thought sperm whales were the only species who used it. We can speculate the dolphins are using it for the same reason as the sperm whales, Berrow said.
References8 in local legend indicate there have been dolphins in the Shannon estuary for generations and they may even have been resident there as far back as the 6th century9.
They are regularly seen by passengers on the Shannon ferry and an estimated 25,000 tourists every year take special sightseeing tours on local boats to visit them.
词汇:
Irish adj. 爱尔兰的
socialise v. 社交,交往
Dolphin n.海豚
bottle-nose dolphin 宽吻海豚
sperm whale 巨头鲸
click n. 咔哒声,喀嚓声
estuary n. 河口,江口
vocalisation n. 发声
shed n. 小屋,棚
digitalise v. 使数字化
whistle n. 啸声
forage v. 搜寻(食物)
prey n. 被捕食的动物
gunshot n. 射击声
groan n. 呻吟,叹息
pulse n. 脉冲
stun v. 击昏
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