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：dev资讯

《“新会陈皮”证明商标使用管理实施细则》明确规定：

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Author(s): Fiorella Cravero, Ignacio Ponzoni, Mónica F. Diaz, Gustavo E. Vazquez，详情可参考爱思助手下载最新版本

Answer

Crawford - whose parent company is based in the US - was approached for comment, but the firm referred the BBC to the NHS.