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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重点领域突破，发展动能全面提升

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Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00293-6

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2025年9月15日，罗伯·莱纳在纽约出席活动。视觉中国 图