Gail Hedberg

Courtesy of San Francisco Zoo

For every famous name in animal science — Jane Goodall, Ivan Pavlov, Charles Darwin — there are easily 100 scientists you’ve never heard of, including Gail Hedberg, a retiring senior veterinary technician at San Francisco Zoo. Ninety percent of her job entails working in the zoo’s hospital, but the other ten percent is pretty different. Hedberg wrote the book on hand-rearing baby exotic animals.