8. Pigeon
Pigeons are abundant in most major cities of North America, but many people think of them as mere pests. However, this ubiquitous bird is actually quite smart. Because pigeons have been the subjects of countless scientific experiments, there is a wealth of knowledge about their intellectual abilities. For example, pigeons can recognize hundreds of images even after several years have passed. They can also identify themselves in a mirror, be taught to perform a sequence of movements and to discriminate subtle differences between two objects – pretty impressive for a mere “pest.”
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