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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宜昌古称夷陵,因“水至此而夷,山至此而陵”得名,后取“宜于昌盛”之意改称宜昌。宜昌历史悠久,七八千年前先民就在这块土地上繁衍生息。宜昌也是蜡梅原产地之一,每逢冬春,宜昌市夷陵区的野梅谷河谷灿黄、花密如星。这朵指尖大小的花卉,耐受住第四纪冰川的考验,经历数百万年地质变迁,至今仍保持着旺盛的生命力。