Animals are a lot smarter than you know. They don't speak English, and they don't burst into song or action as soon as we turn our backs; nature, sadly, is not a Disney movie. But many of them do display intelligence and a desire to learn, as well as an ability to apply past experiences to present moments and future expectations. The gap between human intelligence and that of animals might be so wide as to be insurmountable, but it's not quite as big as we used to think it was. As anyone who's ever had a pet can tell you, animals are a lot sharper than you might want to believe. In fact, they're a whole lot like us.

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Includes various links to article about animal intelligence