Sylvia Earle — American Scientist born on August 30, 1935,

Sylvia Alice Earle is an American marine biologist, explorer, author, and lecturer. Since 1998 she has been a National Geographic explorer-in-residence. Earle was the first female chief scientist of the U.S. National Oceanic and Atmospheric Administration, and was named by Time Magazine as its first Hero for the Planet in 1998... (wikipedia)