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：shanghai资讯

Around three in 1,000 men have BRCA variants, but many will be unaware unless they have family members that are known carriers, and then had it confirmed with a test.

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В Финляндии предупредили об опасном шаге ЕС против России09:28