BBC
Bbc Nature: Wildlife: Lakes and Ponds
Take a close-up look at the world of lakes and ponds and discover what lives and grows there through pictures, news, descriptions, and external links.
US Fish and Wildlife Service
U.s. Fish and Wildlife Service: Wetlands, Marshes, Tracks in the Mud
This resource presents information about wetland ecosystems and the importance of habitat conservation in this resource and then try an interactive activity to identify tracks of wetland animals.
A-Z Animals
A Z Animals: Reference: Habitats: Freshwater
Learn about the plants, animals, and other characteristics of some freshwater ecosystems.