It's early morning in the Amazon rain forest. A caiman glides through the waters of a muddy river. Suddenly, with a huge splash, a jaguar leaps from its hiding place on the riverbank. In an instant, the jaguar sinks its sharp teeth into the caiman's thick, scaly skin. The caiman struggles and tries to fight back, but it's no match for the powerful jungle cat. Filled with information perfectly suited to the abilities and interests of its primary grade...