Bumblebees--the teddy bears of the bee world--are in trouble. There are roughly 250 species of bumblebees all in the genus Bombus worldwide. In North America alone, four once-common Bombus species have vanished from their former ranges. And that poses problems for everyone: Bumblebees are the main pollinators for many of our food products, including blueberries, tomatoes, apples, and almonds. Author Rebecca E. Hirsch chronicles the evolution and the history of bees, examines the role of wild bees in food production and natural habitats, and digs into the serious threats they are facing--dwindling habitat, deadly pesticides, the spread of disease, and climate change. She also calls on young readers to act, outlining specific steps they can take to study, understand, and protect bumblebees.