Oceans cover over 70% of the Earth's surface and are the heart and lungs of our planet. They help regulate climate, feed us, and support much of the planet's biodiversity. We are placing tremendous pressure on our ocean habitats - but with most of them out of sight, how do we know when we've pushed these environments too far? This video clip features a massive new research project in western Australia that is aiming to find out.

In this video clip, three eminent scientists celebrate Darwin's achievements and how the great naturalist's work has affected their own paths to scientific discovery.

Today Darwin would be surprised by the tourist mecca Galapagos has become; 200,000 visitors a year, 40,000 permanent residents. The impact on the most unique collection of endemic wildlife in the world has been heavy; too many people bringing too many of their ways (and invasive species) from the outside world threatening the future of this one-of-a-kind place. What would Darwin think of how Galapagos has evolved in the twenty-first century?

Planet Earth is teeming with life. Help your students make sense of it all by starting them at the bottom of the biosphere-home to bacteria, microbes, fungi, and insects. Organization and Diversity defines key terms, classifies the kingdoms and domains of life, outlines the Linnean hierarchical system, contrasts evolutionary taxonomy with cladistic analysis, and provides powerful DNA evidence supporting the unity of life. Also, the fascinating contributions...

Ocean waves can do terrible damage to beaches and coastal ecosystems, but they also play a positive role in sustaining marine life. In this video clip, surfing scientist Ruben Meerman takes viewers below the surf to find how the waves of coastal western Australia feed life among the reefs.

Quickly and quietly, non-native invasive plants are making deep inroads across America, depriving entire ecosystems of the living things and natural resources they depend on to survive. This program illustrates the alarming environmental and commercial impact of non-native invasive plants; explains why they were planted and how they got out of control; introduces federal, state, and local organizations dedicated to stopping them; and describes mechanical,...

The orangutans of Borneo are threatened with extinction, but we don't know exactly how many are left or where they are. In this video clip, venture deep into the forests of southeast Asia with experts who are trying to answer these questions before it's too late.

Beautiful, complex, and enigmatic, rainforests are time capsules from the ancient Earth. They carry the genetic inheritance of millions of years of evolution, and although they are home to half the world's living species, much of their elaborate web of life is still waiting to be discovered. Filmed in woodlands on the slopes of Australia's Mount Warning, this program provides a stunning example of rainforest habitat as it examines the area's unusual...