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美国公司声称复活灭绝物种恐狼

2025-04-08 22:22 by 太空战

美国公司 Colossal Biosciences 宣布复活了一种灭绝的物种——恐狼。Colossal 公司声称,3 只基因编辑灰狼幼崽——10 月出生的两只公狼 Remus 和 Romulus,1 月出生的一只母狼 Khaleesi,后者实际上是恐狼。恐狼是一种已灭绝的大型犬科动物,曾生活在美洲地区,直到大约 1 万年前灭绝。这些动物看起来像披着白大褂的大型狼。它们因电视剧《权力的游戏》而广为人知,Khaleesi(卡丽熙)就以剧中主角的名字命名。灰狼和恐狼由于外观的相似性被认为是近亲,但 2021 年一项古 DNA 研究显示,它们最后一个共同祖先生活在大约 600 万年前。胡豺、非洲野犬、红豺与灰狼的关系都比二者更密切。Colossal 公司声称,仅仅通过 20 个基因编辑就把灰狼变成了恐狼。Shapiro 表示,事实上这 20 个基因编辑中,5 个是基于已知的能让灰狼产生浅色皮毛的突变;15 个直接基于恐狼基因组,旨在改变它的体形、肌肉组织和耳朵形状。“弄清楚它们是否对基因编辑动物产生了预期效果,还需要一年左右。”

中国科学报:3只幼崽出生,恐狼“复活”了?

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美国公司声称复活灭绝物种恐狼

2025-04-08 22:22 by 太空战

美国公司 Colossal Biosciences 宣布复活了一种灭绝的物种——恐狼。Colossal 公司声称,3 只基因编辑灰狼幼崽——10 月出生的两只公狼 Remus 和 Romulus,1 月出生的一只母狼 Khaleesi,后者实际上是恐狼。恐狼是一种已灭绝的大型犬科动物,曾生活在美洲地区,直到大约 1 万年前灭绝。这些动物看起来像披着白大褂的大型狼。它们因电视剧《权力的游戏》而广为人知,Khaleesi(卡丽熙)就以剧中主角的名字命名。灰狼和恐狼由于外观的相似性被认为是近亲,但 2021 年一项古 DNA 研究显示,它们最后一个共同祖先生活在大约 600 万年前。胡豺、非洲野犬、红豺与灰狼的关系都比二者更密切。Colossal 公司声称,仅仅通过 20 个基因编辑就把灰狼变成了恐狼。Shapiro 表示,事实上这 20 个基因编辑中,5 个是基于已知的能让灰狼产生浅色皮毛的突变;15 个直接基于恐狼基因组,旨在改变它的体形、肌肉组织和耳朵形状。“弄清楚它们是否对基因编辑动物产生了预期效果,还需要一年左右。”

中国科学报:3只幼崽出生,恐狼“复活”了?

#科学

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