A fascinating picture book biography about Mary Leakey, a paleontologist who worked long hours in the fields of Tanzania--includes STEM activities for real-world learning! What was the world like millions of years ago? Did early humans walk on all fours? Did giant sloths lie in trees? Did dinosaurs have feathers? Even as a young girl, Mary Leakey was fascinated by questions like these! In Fossil Huntress: Mary Leakey,...