Here are three dolphin coloring pages designed for classroom use.
"No aquarium, no tank in a marine land, however spacious it may be, can begin to duplicate the conditions of the sea. And no dolphin who inhabits one of those aquariums or one of those marine lands can be considered normal."
Jacques Yves Cousteau
"For instance, 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."
The Hitchhiker's Guide to the Galaxy
"There have been many fishermen I've talked to and several I've observed who, seeing a dolphin near their boat, actually toss fish to it."