Turkish scientists led by Tayfun Ozcelik suggested that a mutation in a single gene might result in quadrupedalism.
由塔丰·奥兹利克带领的土耳其科学家提出，一个基因的突变可能会导致四足动物的出现。
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Turkish scientists led by Tayfun Ozcelik from Bilkent University, in Ankara, suggested that a mutation in a single gene might result in quadrupedalism.