Sylvester and Tweety are two iconic cartoon characters created by Warner Bros. Animation. They are a cat and a canary, respectively, and have been featured in numerous cartoons since their debut in 1945. Sylvester is a large, orange tabby cat who is always trying to catch the small yellow canary, Tweety. The two have become synonymous with classic cartoon comedy and are often used as a representation of the eternal struggle between cats and birds.