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：pc资讯

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When asked about that capability Thursday by The Associated Press, Burger King said the intent is to use Patty as a coaching tool, not a tracker of individual employees.

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Почему туристы иногда исчезают бесследноОб отдыхе на знаменитых курортах с трагическим исходом17 июня 2016

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63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54