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状态:HD
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年代:2020
时长:120分钟
语言字幕:英语
国家地区:美国
更新时间:2020-06-14 11:39:25
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影视简介:Dogs have long been dependable companions by our sides. But it wasn’t always that way, and a look at their closest living relative, the wolf, makes it clear why. Research into dog domestication and intelligence offers clues into the human-dog relationship. And analyzing dogs’ brain activity and genes may even help answer whether dogs are in it for the food—or if they really love us.