Jane Goodall is the world's leading authority on chimpanzees. She moved to the African jungle to study them. Her visit to Kenya led to a meeting with famous paleontologist Louis Leakey. Although she wasn't a trained scientist, Goodall began working with Leakey in 1960. She earned the trust of the apes and observed their social interactions. She studied them for more than 30 years. She learned that chimps use tools and are more intelligent than was previously thought.