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.
Dig leader Peter Crawley said he had a gut feeling about the site before the excavation began.
，这一点在同城约会中也有详细论述
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