What cartoon is about a cat that walks? - briefly
The cartoon you're referring to is likely "Walking with Dinosaurs".
What cartoon is about a cat that walks? - in detail
The cartoon in question is likely "The Cat Came Back," a classic animated short created by Cordell Barker for the National Film Board of Canada. This beloved cartoon tells the story of a mischievous and persistent cat that returns again and again, despite numerous attempts by the protagonist to get rid of it. The cat's resilience and tenacity are highlights of this charming tale, which has become a timeless favorite among audiences.