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：pet资讯

國際滑雪聯合會（FIS）向BBC體育部聲明：「對於選擇參加多項賽事的運動員，賽程衝突有時難以避免。」

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