Nothing can be understood without evolution…
This phrase is often repeated among biologists, but it is time for non-biologists to recognize the truth of this statement. In the opening session of this year's course at the Institute of Catalan Studies, Jordi Casanova explained that in the light of modern knowledge, we humans are animals, considering not only in our biology (an obvious fact) but also our behavior. Many studies, mostly on apes, have shown the existence of feelings such as jealousy, envy, a sense of for injustice, rebellion; to these I would add empathy, defense of hierarchy, and a wish power.