Over 800 marine species have recently been discovered including a guitar-shaped shark off the coast of Mozambique. NPR's Sarah McCammon speaks to marine biologist, Lucy Woodall. Guitar sharks, mud ...

Lucy is a mud volcano on the island of Java, the most populous island in Indonesia. It's on the eastern tip of the island. It's already swallowed the homes of more than 30,000 people.

Over 800 marine species have recently been discovered including a guitar-shaped shark off the coast of Mozambique. NPR's Sarah McCammon speaks to marine biologist, Lucy Woodall.