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4日 · 张伟 · 来源：dev资讯

Дания захотела отказать в убежище украинцам призывного возраста09:44

我的一位老师曾经建议：如果你能想象自己去做任何别的事，那你或许应该去做那件事。。同城约会对此有专业解读

语重心长的叮嘱，既指明认识论，也给出方法论。

Researcher

Three weeks ago, I tested something that completely changed how I think about organic traffic. I opened ChatGPT and asked a simple question: "What's the best course on building SaaS with WordPress?" The answer that appeared stopped me cold. My course showed up as the first result, recommended directly by the AI with specific reasons why it was valuable.