Ecology: The Pond Ecosystem - An overview of the greenhouse effect, adaptations, the food chain, and other related topics. Written by students at St. Joseph High School. www.danielmwilson.com/ecology
Lakes and Ponds Habitat Guide - Information and color photographs of hundreds of species that inhabit lakes and ponds in the North America. www.enature.com/habitats/show_sublifezone.asp?sublifezoneID=56
