Why are nature reserves so useful?

A nature reserve is an area of protected land where local wildlife and plant life are able to live without being hunted, or have their habitats destroyed. It is important to protect the natural world and it's creatures because together they create the global ecosystem that everything lives in. Nature reserves also allow research to be done on how different species exist, how to protect them, and how they interact with and impact the human race. People can visit nature reserves to learn about local ecosystems and the research being done.