In 1957 at the Field Museum in Chicago, Dr. Karl Schmidt, a famous herpetologist, was examining a small green-and-black boomslang snake. In less than a second, the snake sank its small, rear-facing fangs into Karl's thumb. At the time, Karl and other scientists didn't believe the boomslang's venom was deadly. Karl would soon learn otherwise. Learn all about venomous snakes in this engrossing narrative nonfiction book for young readers. It's packed with exciting wildlife encounters, cutting-edge science, and loads of info about venom and its deadly effects.