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.

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到1988年，为了服务新兴的Sun City West分区，Sun Health基金会捐赠900万美元，建成了Del E. Webb Memorial Hospital（现名Banner Del E. Webb Medical Center），同样以老年护理为核心，和第一家医院形成互补，覆盖更多退休居民。

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Bill Clint

14:10, 27 февраля 2026Наука и техника