[专升本英语每日一句[Day 15]
15. For thousands of years, donkeys have been critical for propelling human civilizations
forward. They've helped pull wheeled vehicles, carry travelers and move goods across the
world. But where and when these animals first became intertwined with humans has been a
mystery. Now, researchers have used 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. The team published their findings in the journal Science this month.
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