Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

· · 来源:global资讯

Цены на нефть взлетели до максимума за полгода17:55

麥永剛說,在中國工作其實極具挑戰性,只有享受挑戰的人才會覺得有趣。中國每個月的驚喜從不間斷。,更多细节参见heLLoword翻译官方下载

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