Dr Seuss, for example was a keen user of the anapest. An anapest is a type of meter. It is made up of three syllables, two unstressed syllables followed by one stressed syllable. Each group of these 3 syllables is called a foot and Dr Seuss liked to have 4 feet per line.
From ‘Horton Hears a Who’...
|On the fif|teenth of May| in the Jun|gle of Nool|
1 2 3 4
|In the heat| of the day| in the cool| of the pool|