UK Daily Mail 
May 16, 2013
Men who are physically strong are more likely to take a right wing political stance, while weaker men are inclined to support the welfare state, according to a new study.
Researchers discovered political motivations may have evolutionary links to physical strength.
Men’s upper-body strength predicts their political opinions on economic redistribution, according to the research.
The principal investigators – psychological scientists Michael Bang Petersen, of Aarhus University in Denmark, and Daniel Sznycer, of the University of California in the U.S., believe that the link may reflect psychological traits that evolved in response to our early ancestral environments and continue to influence behaviour today.
Professor Petersen said: ‘While many think of politics as a modern phenomenon, it has – in a sense – always been with our species.’
In the days of our early ancestors, decisions about the distribution of resources were not made in courthouses or legislative offices, but through shows of strength.