Editing Evolutionary neuroscience (section)

=== Techniques ===
Throughout history, we see how evolutionary neuroscience has been dependent on developments in biological theory and techniques.<ref name=Northcutt-2001/> The field of evolutionary neuroscience has been shaped by the development of new techniques that allow for the discovery and examination of parts of the nervous system. In 1873, [[Camillo Golgi|C. Golgi]] devised the silver nitrate method which allowed for the description of the brain at the cellular level as opposed to simply the gross level. [[Santiago Ramón y Cajal|Santiago]] and Pedro Ramon used this method to analyze numerous parts of brains, broadening the field of comparative neuroanatomy. In the second half of the 19th century, new techniques allowed scientists to identify neuronal cell groups and fiber bundles in brains. In 1885, [[Vittorio Marchi]] discovered a staining technique that let scientists see induced axonal degeneration in myelinated axons, in 1950, the "original ''nauta'' procedure" allowed for more accurate identification of degenerating fibers, and in the 1970s, there were several discoveries of multiple molecular tracers which would be used for experiments even today. In the last 20&nbsp;years, [[cladistics]] has also become a useful tool for looking at variation in the brain.<ref name=Northcutt-2001/>