human being (n.) the most evolved animal species on earth, historically taking advantage of opposable thumbs and an abnormally large frontal lobe to exploit other humans, animals, and the environment. Humans act with heightened emotions of love, hate, altruism, and vengeance, creating breathtaking feats of romance and heroism thrown off balance by horrific atrocities of evil and villainy. Technological advancements and social enlightenment hint at the further evolution of the species.
empathy(n.) the capacity animals possess that enables them to think and feel the thoughts and emotions of others. Scholars speculate that empathy may have prompted the evolution of many advanced human animal capacities, including language, altruism, love, kindness, and sociality. Although first discovered in chimpanzees, scientists have since proven that many animals, including mice, possess the power of empathy.
altruism(n.) the highest evolutionary action in animals, which promotes selfless acts of kindness and generosity towards other creature. The highest moral motivation.