The Hitchhiker's Guide to the Galaxy
"It's an important and popular fact that things are not always what they seem. For instance, on the planet Earth, man had always assumed that he was the most intelligent species occupying the planet, instead of the third most intelligent. The second most intelligent creatures were, of course, Dolphins, who, curiously enough, had long known of the impending destruction of Earth. You see, on the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much - the wheel, New York, wars and so on - whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man - for precisely the same reasons. They'd made many attempts to alert mankind to the danger, but their communications were misinterpreted as amusing attempts to punch footballs or whistle for tidbits."