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ao da li ya pei yu shi guan zuo yu
Pages: 3
Year: Issue:  11
Journal: Ocean World

Abstract: <正>灰色护士鲨是一种相貌凶猛,但性格温驯的鲨鱼。尽管从1984年开始,澳大利亚就宣布它为濒临灭绝物种,同时对它的栖息地采取保护措施,但科学家称,在未来20年内,护士鲨将灭绝于澳洲东海岸。人工培育灰色护士鲨的关键,是避免“子宫内自相残杀”过程。正如鱼类海洋生物学家尼克·奥特韦所说的那样:”幼胎一旦长到10厘
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