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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Жители Санкт-Петербурга устроили «крысогон»17:52

The costing estimates do not include time officials spend preparing and appearing as witnesses in person.，详情可参考服务器推荐

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It's kitted out with CCTV cameras, allowing the team to monitor the animal's behaviour.

How did Nasa's Suni and Butch fill nine months in space?，推荐阅读Line官方版本下载获取更多信息

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