Young readers accompany Grandma Science on an expedition to the Amazon River Rainforest. Using captivating photos and nonfictional rhyme, young explorers are introduced to the variety of animals encountered on a river tour and rainforest walk. Animals observed include monkeys, parrots, snakes, fish, ants, and a very, tiny red frog. Each of the twenty-three animals are identified by name, location, and characteristic features. The end of the book contains a wealth of additional information as well as definitions of the key scientific vocabulary highlighted in the text.