Barner revisits the weighty subjects of his popular Dinosaur Bones, looking at how butterflies coexisted with dinosaurs: “By spreading pollen from bloom to bloom, butterflies helped flowering plants flourish. Flowering plants made more air for dinosaurs to breathe and huge amounts of food for them to eat.” Each double spread’s format is the same: one sentence in colorful, blocky typeface sits amid the artist’s bold cut-paper designs, the entire layout backed with a single, vivid hue. 

— Publishers Weekly