" A different study revealed another aspect of humanity’s unique spiritual nature—the capacity for malevolence. It appears that only humans among Earth’s creatures harm each other for harm’s sake.[64] The research team housed chimpanzees in cages that allowed them to withhold food from other chimpanzees by pulling on a rope. The researchers found that the chimpanzees would withhold food (in a statistically significant manner) only from chimpanzees that stole their food—not from others. In others words, they showed no tendency toward behavior that in humans would be defined as “spite” or displaced retaliatory anger. The research team concluded that spiteful behavior appears unique to humans. Only humans engage in malicious behavior toward fellow humans for no reason other than the impulse to hurt or harm someone. The team also commented on humanity’s flip side, “pure altruism.” Only humans, not primates, engage in self-sacrificial acts performed to assist or benefit other humans or even animals with whom no social context has ever been or likely will be established. In other words, the study confirmed what the Bible says about humanity’s spiritual nature and condition: humans are uniquely sinful and uniquely righteous among all living creatures. "
― Hugh Ross , Hidden Treasures in the Book of Job: How the Oldest Book in the Bible Answers Today's Scientific Questions