Naturforscher
Naturforscher is a German term for a person who studies the natural world. Historically associated with natural history and early science, the word covers a range of practitioners—from professional scientists to educated amateurs—whose work centers on observing, describing, and explaining natural phenomena.
Their activities include fieldwork, collecting specimens, recording data, classifying organisms (taxonomy), describing habitats, and conducting experiments
Historically, Naturforscher emerged in the Enlightenment and flourished in the 18th and 19th centuries as natural
In modern usage the term remains broad and can refer to researchers across natural sciences as well