It is written in anapestic tetrameter. Written in anapestic tetrameter, the poem was popular in school recitations. Lord Byron's epic "Don Juan" contains much anapestic tetrameter. The work is a fantasy adventure, written entirely in rhyming anapestic tetrameter. There are four basic families of verse&colon; dactylic, iambic (and trochaic), Aeolic, and anapestic. Part II generally uses pentameter couplets with an interlude of anapestic dimeters. "Horton Hears a Who!" is written in anapestic tetrameter, like many other Dr. Seuss books. This is one of the few Seuss works in verse that is not anapestic tetrameter. Thus the iambic metron is u-u-, the trochaic -u-u and the anapestic uu-uu-. An anapestic foot is two unstressed syllables followed by a stressed syllable. The anapestic (or anapaestic) tetrameter catalectic is used in comedy. Anapestic tetrameter was introduced into Polish literature by Adam Mickiewicz. Anapestic tetrameter with masculine ending (ssSssSssSssS) is rare. At this time, no anapestic pairs have been found. Anapestic tetrameter is generally used in the Parode (entrance ode) of Classical Greek Tragedy.