Preservation development is when people plan for how to use an area so that important things in the area, like animals, plants, and buildings, are saved and protected. It's like a plan to take care of something. Let's use an example to help explain it a bit more. Imagine a big, open field with lots of wildflowers. People can choose to use the field to build a shopping center or they could make a plan to save the wildflowers and keep the field open so people can enjoy the beauty of the flowers. That plan to save the wildflowers is an example of preservation development.