Many think that the ocean contains mostly water, says Sylvia Earle, an American ocean explorer in a report on the website of National Geographic.But it’s alive and is the most fascinating museum on Earth. The ocean offers an amazing array of weird and *bizarre forms of life: a blue whale, the largest animal on Earth, swims among millions of tiny *plankton. *Coral reefs are rain forests of the sea. Let’s *plunge into the deep together to discover what else lies beneath the surface.