National parks also are important because they protect a large number of different animal and plant species. There are some national parks that are home to animals that are limited to certain areas of the United States. Many of these animals could be killed or endangered if they were to live in another area that was not protected by the government.
Since many national parks encompasses land that has rivers, streams, lakes, ponds, mountains, and forests there are many state parks that are open to the public for camping and other activities. The activities that are allowed in a national park will likely depend on the park in question. It is not uncommon for one park to allow fishing in their local river while another does not.
As previously stated a large number of national parks have a wide variety of different animals that live on park land. There are many famous national parks that allow toured guides throughout their park. These toured guides are often offered to protect a number of visitors from being injured or attacked by a potential dangerous animal.