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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FirstFT: the day's biggest stories

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This Side Hustle Spotlight Q&A features Federica Mercuriello, 42, founder of Sausly, a business selling pasta and sauce kits made in Italy. Originally from Italy and now based in Miami, Florida, Mercuriello moved to the U.S. in 2009 on a scholarship to study civil engineering at Columbia University. Responses have been edited for length and clarity.