Have you wondered recently what makes us humans do what we do? Have you pondered why can we be so beautiful at times and act like crazed savages at other times? Why, for example, President Donald J. Trump, who swore to defend the laws of my United States and to protect our Constitution, is glowing about two Confederate generals? During the bloody civil war of 1861-1865, the Union of northern states declared loyalty to the U.S. Constitution, while the southern Confederacy fought to destroy my country and keep the savage slavery going. So how can a U.S. president praise the two major traitors, who fought against everything we stand for and against the U.S. Constitution? Donald J. Trump Perhaps human history and nature can give us clues. So who are we? Humans are large omnivores, whose ecological niche is to reset (remove mass from) the environment in which they roam. A human requires about 4 square km to roam freely in small egalitarian bands in their natural settings.