When it comes to litter boxes, simpler is better, say Dr. Wailani Sung, a certified veterinary behaviorist and senior director of animal admissions and wellbeing at Joybound People & Pets, and cat ...

The latest news and headlines from Yahoo News. Get breaking news stories and in-depth coverage with videos and photos.

Have top stories from The Daily Pennsylvanian delivered to your inbox every day, Monday through Friday, when Penn classes are in session.