"This book answers children's questions on the ecology of freshwater lakes, breaking down the science, plants, fish and animals, and geography of life underwater."-- Provided by publisher.

Takes you on a twisting journey down the great rivers of the world, pausing to visit the thriving realm of freshwater ponds. Travel upstream to find civilization's source - then down again to see the key to our very survival.

Global wetlands exhibit significant differences in both hydrology and species composition and range from moss-dominated arctic peatlands to seasonally-flooded tropical floodplains. They are increasingly recognized for the important services that they provide to both the environment and human society such as wildlife and fish production, nutrient filtering, and carbon sequestration. A combination of low oxygen levels and dense plant canopies present...

"Presents information on the biome of lakes and rivers following the food web and flow of energy from sun to plants and animals"--Provided by publisher.

A look at the plants, animals, locations, and various habitats that make up the freshwater ecosystems of the world.