biotic communities

Jeff Corwin explores the habitats of Australia and Tasmania in search of reptiles, introducing such animals as the goanna, skink, carpet python, death adder, and brown, copper, and tiger snakes.

Presents an introduction to deserts, explaining the plant and animal life that live there, as well as how desert environments are constantly changing.

Presents an exploration of a farmland habitat, looking at its plants, insects, birds, animals, and people, and the interactions among them.

An introduction to biomes that discusses living and nonliving things, forests, grasslands, savannas, deserts, tundra, and marine and freshwater biomes; and includes a glossary.

Describes the invasion of species from one ecosystem to another and the ensuing effects on the native plant and animal life.

Provides simple, interactive projects to explore the concepts of ecosystems, and biotic communities.

Visits Botswana's Okavango Delta, presenting footage of cheetahs, wild dogs, hippopotamuses, crocodiles, pangolins, catfish, elephants, and lechwe negotiating their survival in the complex ecosystem that develops there during the annual dry season, when floodwaters flow in from Angola.

"... In Marine ecoststems, students will explore saltwater environments -- from shorelines to coral reefs -- and learn about the fish, plants, mammals, and insects that depend on each other for survival in this aquatic biome. Examine concepts such as salinity and currents, and find out about the three major life zones found in ocean waters. A fun, hands-on experiment allows students to discover how brine shrimp have adapted to changes in salt concentration, while a visit with a marine biologist on the Chesapeake Bay examines the fascinating life cycle of a blue crab.