Marine biologist Brent Hughes discovered a surprising connection between sea otters and sea grass at an estuary in northern California. Follow science in action as Hughes conducts the research that led to this major discovery.--

In the 1990s, scientists lived inside Biosphere 2 (Biosphere 1 is the Earth itself) for two years, trying to figure out if colonizing Mars would ever be possible. Now scientists don't live there but instead conduct all sorts of studies and experiments aimed to help us better understand our environment and especially understand what sort of things are happening to it due to climate change and other man-made problems. It's a unique take on the Scientists...

Examines the climate, plants, animals, and people of the deserts around the world.

Presents new animals discovered during a ten year project of documenting sea life, describing new species of such creatures as jellyfish, octopuses, squids, sea worms, and crabs, found along coral reefs, ocean mountain ranges, and in the dark zone.

Offers an introduction to ocean ecosystems, describing how the plants, animals, and other organisms that live there are all connected.

Attending an ecological conference in Alaska, the Thea Sisters are introduced to local games and customs by their native Alaskan hosts before discovering that someone is endangering the ecosystem by using explosives to blow up the ice.

Describes the world's rainforests, their canopies and forest floors, their climate, and the variety of plants and animals which they support. Includes related projects and activities.

Describes some of the symbiotic relationships that help preserve the fragile coral reef ecosystem.

Describes the history of the Great Barrier Reef, including how it was discovered, the creatures that call the reef home, and what is being done to protect it.

Offers an introduction to woodland forest ecosystems, describing how the plants, animals, and other organisms that live there are all connected.