This document provides information about rivers and wetlands. It explains that rivers are formed from streams joining together and flow downhill from mountains and creeks. Wetlands are areas saturated with water, like swamps. The document lists common animals found in rivers like fish, turtles, and insects and in wetlands like alligators, manatees, and snakes. It provides details on some major rivers like the Amazon and Nile and notable wetlands around the world.