"Young viewers will explore freshwater ecosystems such as ponds and rivers, as well as marine ecosystems like coral reefs and the open ocean. They will learn that the animal and plant life found in water ecosystems make up communities that are as complex as they are beautiful. A hands-on experiment demonstrates what happens when pollutants get into ponds and lakes, while a visit with a marine biologist examines the oyster population of the Chesapeake...

"Step into the forest--a vast, green landscape of trees and plants, home to countless animals. Peel back the corners of the forest to discover the incredible organisms that live in this ecosystem, from insects and birds to deer and bears. Learn how each organism functions within its forest ecosystem and how it survives in one of the most diverse biomes on Earth. Find out, too, where forests are found all around the world and what you can do to help...

An introduction to the ecosystems observed on mountains around the world.

An introduction to the ecosystems observed in rivers and lakes around the world.

Australia is home to one of the world’s largest, most complex and amazing ecosystems: the Great Barrier Reef. This video explores the reef’s biotic and abiotic features, including coral formation and how changes in abiotic factors affect it; the food chain, nutrient cycle, and carbon cycle; and the impact of human activity. It is an excellent resource for middle/senior students of geography, biology, and environmental science.