In this series, the impact of polar bears, bees, monarch butterflies, frogs, dragonflies, and coral reefs are discussed alongside their predicaments in our world. Each volume includes facts and activities at the end of each chapter to help students and young readers explore the topic further. . .[and] has a “Straight to the Source” section that helps students analyze the main ideas, author’s purpose, and text evidence, which are helpful in finding informational texts for today’s CCSS-related activities.