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Early domestic animals were surprisingly well bred

Early domestic animals were surprisingly well bred

作者:龚擤  时间:2019-03-08 07:08:06  人气:

By Andy Coghlan and Ewen Callaway THEY may not have known about genes and Darwinism, but our ancestors knew how to drive the evolution of once-wild beasts to serve their own needs. A spate of studies published last week show how domestication suddenly gave horses coats of many colours, cows the extra genes to produce milk and fight infection – and even shrank sheep’s horns. The studies also support what archaeologists have long argued about the domestication of wild beasts: that sheep were probably the first farmed animals, about 11,000 years ago, followed by cattle. Then,