他们大力开展了狗的强制性登记活动。
They have campaigned strongly for compulsory registration of dogs.
一名摩托雪橇手曾多次试图攻击她和她的团队，而泽克尔的其中一只狗也受到了非致命性的伤害。
A snowmobile driver had repeatedly attempted to harm her and her team, and one of Zirkle's dogs had received a non-life-threatening injury.
研究人员发现，狗能够通过用鼻子触碰图片，来选择愤怒或快乐的面孔，其概率超过了人们对随机性的预期。
The researchers found that the dogs were able to pick the angry or happy face by touching a picture of it with their noses more often than one would expect by random chance.
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