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：erp资讯

Wallace was taking legal action against the BBC and BBC Studios after being sacked from the cooking show in July.

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Mercuriello wondered why there wasn’t a perfectly portioned pasta and sauce kit that wasn’t precooked.

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Screening is when people are invited for a test to look for disease despite them having no symptoms.