If you’ve ever welcomed a puppy into your home, as many New Yorkers did during the pandemic, you know it can be a cute, challenging and sometimes chaotic experience. Dr. Alexandra Horowitz is the founder of the Dog Cognition Lab at Barnard College, and her new book, “The Year of the Puppy: How Dogs Become Themselves,” is about her first year raising and getting to know her dog, Quiddity. She spoke with WNYC’s Tracie Hunte about why we find puppies so irresistible, why they aren’t blank slates, and why having her own human baby only partially prepared her for having a four-footed newcomer.