Lord uses rhyming couplets, each with 7 or 8 syllables. She establishes a strong rhythm that carries throughout the book. In fact, when I closed this book and opened the next one on my stack, it took me several pages to stop trying to wrest those (prose) lines into her very chant-able rhythm.
There’s lots of great information packed into her rhymes. Did you know, for example, that mammals, “People, rabbits, even deers,/all of them have stick-out ears”?
A handy chart in the back matter lays out for you the characteristics she’s covered, an exception to the common characteristics, and some of the species in each class.
Animal School: What Class Are You? by Michelle Lord, illustrated by Michael Garland. Holiday House: 2014