National parks and preserve have been around since the Ancient Greek time. These areas back then where created to protect sacred groves for religious purpose (142). In Europe, royal hunting grounds were preserved for the elite class society. The first preserve park to be opened to the public was the tree-sheltered agoras in planned Greek city and visitors have been destroying them every since. Society is the main threat to the ecosystem and health in our national parks. People are more concern with the economy and money then the ecosystem. For instance, in Greece the Pindus National Park there is erosion and loss of wildlife and habitat because they are planning on building a hydroelectric dam in the center of the park. Ecuador has one of the