I suppose that you thinks to archivistics, diplomatics, linguistics, forensic examination.
Life science. Also, biology if you would include that as a branch of science.
medical science.
This is not a branch of agriculture but a branch of medial science.
It would be simple machines
mechanics?
Geography
Physics
The Olive Branch Petition was the document sent to George III.
Chemistry or physics.
Nutrition would be the broad field.
There is no particular branch which deals with extinction, but it would fall under zoology,
biochemistry