It is often taken to mean "natural environment" or wilderness—wild animals, rocks, forest.

 Generally considered to be areas that have not been heavily modified by human intervention, 

or areas where human intervention may not occur. . For example, manufactured objects and 

human interactions are not generally considered part of nature.

Natural physics refers to the appearance of the world and the living species. 

From ancient times to the present, nature has been understood in terms of the theory 

of natural and artificial. It can be either atomically small particles or very large 

like diatoms.