Natural history is a domain of inquiry involving organisms including animals, fungi and plants in their environment; leaning more towards observational than experimental methods of study. A person who studies natural history is called a naturalist or natural historian.
Natural history encompasses scientific research but is not limited to it. It involves the systematic study of any category of natural objects or organisms. So while it dates from studies in the ancient Greco-Roman world and the mediaeval Arabic world, through to European Renaissance naturalists working in near isolation, today's natural history is a cross discipline umbrella of many specialty sciences; e.g., geobiology has a strong multi-disciplinary nature.
The English term "natural history" is a translation of the Latin historia naturalis. Its meaning has narrowed progressively with time, while the meaning of the related term "nature" has widened (see also History below). In antiquity, it covered essentially anything connected with nature or which used materials drawn from nature. For example, Pliny the Elder's encyclopedia of this title, published circa 77 to 79 AD, covers astronomy, geography, humans and their technology, medicine and superstition as well as animals and plants.