exact revenge against group members that exhibit selfish behavior (Call 2001, Jensen et al. 2006). Genes and Environment in Human Behavior: Sociocultural Influences and Politics An understandable ...

and a nurturing environment. Selfishness isn’t a fixed trait—it’s a behavior that can be reshaped with love and guidance. Here are 5 ways to know if a child is developing selfish tendencies ...

Another vented about what they described as "selfish, horrifying behavior," recounting one ... not only ugly but also extremely harmful to the environment.