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Raccoons are smart. If you've ever had to deal with them then you'll probably agree that they are some of the smartest creatures on Earth. In 2011, PBS did a one-hour documentary on raccoons and their nocturnal behavior. The raccoons were tagged with GPS collars and studied for three months. The information gleaned from the researchers begged the question, "Are humans making raccoons smarter?" It seem as though every attempt to keep them out of our trash bins present them with a new and interesting puzzle to solve which in turn creates smarter raccoons that survive and pass on their genes. It sounds like a ridiculous theory but take look at the documentary before you make any judgments. The library owns one copy at the main branch.