I had never heard the word “estivate” until I learned about this book by one of my favorite nonfiction authors Melissa Stewart (illustrated by Sarah S. Brannen). Estivation is like hiberation, except it happens in the summer for animals who are looking for a cool escape from the hot temperatures. Some animals will estivate in groups, like ladybugs, while others will find a burrow, nest, hollow long, or underground spot to be alone. I loved learning about how animals adapt to hot weather, and think young readers will be fascinated to learn more about this practice.