“Your cat may bring you a prey item—such as a toy or mouse—presenting it to you as a gift,” says Dr. Meisler. “This is your cat saying you are part of their pack and they want to make sure you are ...

Built to challenge a cat, or perhaps merely to tease it, Sourino is a robotic mouse built with common off-the-shelf parts. A test subject appears unamused. So named for the combination of Souris ( ...