Now, researchers have used the genomes of over 200 donkeys to trace their domestication back to a single event around 7,000 years ago in East Africa - about 3,000 years before humans tamed horses.
现在，研究人员利用了200多匹驴的基因组，追溯它们的驯化历史，发现大约在7000年前的东非发生了一次单一的驯化事件——这比人类驯化马早了约3000年。
The researchers examined 207 genomes from modern donkeys living in 31 countries across the globe.
研究人员检查了来自全球31个国家的现代驴的207个基因组。
They also looked at genomes from 15 wild equids and 31 earlier donkeys that lived between about 4,000 and 100 years ago.
他们还研究了15种野生马科动物和31种大约生活在4000年前到100年前的早期驴的基因组。
The animals could benefit from more research: Currently, there are no published genomes from donkeys located south of the equator in Africa.
这些动物需要更多的研究：目前还没有发表来自非洲赤道以南地区的驴的基因组。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。