Neural networks power today’s AI boom. To understand them, all we need is a map, a cat and a few thousand dimensions.

On March 22, a black cat named Tulip ventured outside for some fresh air in Mansfield. But her outdoor excursion didn’t go as she planned. “True to her name, ‘Tulip’ was anxious to get out ...

Q. I’m a 78-year-old widow, who has been without a cat for one year now; first time in my life. Is it fair to adopt a cat if I most likely only have 1½ to 2½ more years to live? I do travel as ...