Description
复活恐龙、猛犸象等已经灭绝的史前动物，向来是各种科幻小说和电影里的常见情节，但在现实中，想要复活这些史前动物却面临非常复杂的技术挑战。近日，美国生物技术公司Colossal Biosciences宣布，科学家使用灭绝动物的DNA、克隆和基因编辑技术，通过改变与恐狼血缘关系最近的灰狼的基因，已经诞生了3只“恐狼幼崽”。
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