Complex sentence: Three years later, Babbit and Catsello reappeared in the similarly-named "A Tale of Two Mice"--though the characterizations were the same, the two were now mice, living in a hole in the wall of a typical cartoon kitchen.
Split into simpler sentences: Three years later, Babbit and Catsello reappeared in the similarly-named "A Tale of Two Mice". Though their characterizations were the same, the two were now mice, living in a hole in the wall of a typical cartoon kitchen.