Did you know that the oceans cover nearly 71 percent of the earth's surface and have 10,000 times the water of all freshwwater lakes and rivers? That's amazing, isn't it? The system of oceans around the world is the basis of our global climate. And there is incredible biodiversity under all that water. Scientist have developed such medicine as anti-leukemia drugs from sea sponges, diagnostic chemicals from red algae, anti-infection compounds from shark skin and ever bone graft materials from corals. But the ecosystems that have provided us with this medicine are in danger from the same thoughtless treatment that has degraded the environment on the land.