Sorry, peaceniks. New research that takes an innovative approach to charting the evolution of lethal violence has found that Homo sapiens evolved from a particularly brutish branch of mammals. A proclivity for smashings and bashings is in our DNA. Before you punch something because this news upsets you, though, take heart: the researchers also found that our propensity for killing each other can be mitigated.
Trying to figure out why humans are prone to killing other humans has bedeviled