I want to know the answer to the following question:
The most popular early Marvel heroes were collectively and colloquially known as what?
All the background I'm provided with is that "Timely also published one of humor cartoonist Basil Wolverton's best-known features, "Powerhouse Pepper", as well as a line of children's funny-animal comics featuring popular characters like Super Rabbit and the duo Ziggy Pig and Silly Seal.". Is that enough to answer the question?