'Orcas had millions of years to optimise their sonar and it shows,' said researcher Onur Kilic.
“虎鲸用了百万年的时间优化他们的声纳系统，并也显现出来了。”调研人员欧尼-科里奇说。
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Onur, who has been deaf since birth, works as a librarian. His father had left him and his mother when he was seven, and Onur has always blamed himself for this.