In 1952, the first successful animal cloning took place when Robert Briggs and Thomas J. King cloned a tadpole.
1952年，罗伯特·布里格斯和托马斯·王的克隆蝌蚪实验首次实现了动物克隆的成功。
In 1952, the first successful animal cloning took place when Robert Briggs and Thomas J. King cloned a tadpole.
1952年，罗伯特·布里格斯和托马斯·王的克隆蝌蚪实验首次实现了动物克隆的成功。
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