Next to animals, the most interesting subjects at the zoo are the people, especially the children and the newcomers to the zoo. The changing expressions on the faces of children, as they attempt to communicate with the animals, are both amusing and inspiring. The expression on the faces of parents, as they struggle between allowing their children to explore and finding a place to rest, is almost comical. Then, there are also people who work in the zoo. These are the people who feed and interact with the animals. When the lens catches these faces, the zoo photographer may just have an award-winning picture. However, when the zoo photographer plans on selling such pictures, he/she must also make sure that he gets the permission of these people and have them sign a model release contract.
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