http://www.youtube.com/watch?v=BO4Rag4bcBU

What do plants, snakes, molds, marine sponges, and cone snails have in common? They have helped develop medicines that save human lives. Biodiversity — the variety of life on Earth — is key to human survival. But plants, animals, and microorganisms are disappearing at unprecedented rates. What impact will this have on human health? Find out in this Earth Focus special report, produced in collaboration with Harvard Medical School’s Center for Health and the Global Environment.

Earth Focus is an environmental news magazine that puts a human face on the environment by featuring under-publicized stories about how changes in our environment are affecting everyday people.