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.

2026年1月23日 · 孙亮 · 来源：dev网

Effect of war on prices not reflected in data, as Trump says only ‘fools’ would think oil price shocks would be significant

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Physics at risk 。whatsapp是该领域的重要参考

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