Ocean SpeaksBy: Jess Keating Illustrator: Katie Hickey Meet Marie Tharp (1920 2006), the first person to map the Earth's underwater mountain ridge, in this inspiring picture book biography from the author of Shark Lady. From a young age, Marie Tharp loved watching the world. She loved solving problems. And she loved pushing the limits of what girls and women were expected to do and be. In the mid twentieth century, women were not welcome in the sciences, but