The comparative species approach allows behavioral neuroscientists to explore various neurobiological factors associated with specific behaviors viewed as characteristic of a specific animal model. Taking advantage of naturally occurring differences in behavior between closely related species, this technique doesn’t require invasive techniques to manipulate the expression of the behavior.
Franssen, C. L., Bardi, M., Lambert, K. G. Using a Comparative Species Approach to Investigate the Neurobiology of Paternal Responses. J. Vis. Exp. (55), e3173, doi:10.3791/3173 (2011).