This study was designed to determine whether there is a significant correlation between the number (or intensity) of restrictions on consumption of animal protein and a low level of animal protein. Findings do not support a correlation.

Factor analysis is employed to examine variables related to alcohol consumption. Hypotheses related to the integration of drinking, inebriety, aggression while intoxicated, and quantity of drinking are examined.

This study examines sex differences in alcohol consumption, suggesting that they are related to a nomadic or rural settlement, low accumulation of food resources, and strong child training pressure toward achievement. The authors suggest that societal norms often limit drunkenness in women because women's responsibilities (such as childcare) would deter incapacity due to intoxication.

This study examines sex differences in alcohol consumption, suggesting that they are related to a nomadic or rural settlement, low accumulation of food resources, and strong child training pressure toward achievement. The authors suggest that societal norms often limit drunkenness in women because women's responsibilities (such as childcare) would deter incapacity due to intoxication.

This study examines the interrelationships between achievement, aggression, psychological distress, competition and interpersonal behavior. Authors suggest that levels of achievement, aggression, and psychological distress are partly determined by corresponding levels of of competition and interpersonal intensity. Hypotheses are supported.

This study examines the interrelationships between achievement, aggression, psychological distress, competition and interpersonal behavior. Authors suggest that levels of achievement, aggression, and psychological distress are partly determined by corresponding levels of of competition and interpersonal intensity. Hypotheses are supported.

This study examines sex differences in alcohol consumption, suggesting that they are related to a nomadic or rural settlement, low accumulation of food resources, and strong child training pressure toward achievement. The authors suggest that societal norms often limit drunkenness in women because women's responsibilities (such as childcare) would deter incapacity due to intoxication.

This study examines sex differences in alcohol consumption, suggesting that they are related to a nomadic or rural settlement, low accumulation of food resources, and strong child training pressure toward achievement. The authors suggest that societal norms often limit drunkenness in women because women's responsibilities (such as childcare) would deter incapacity due to intoxication.

This study examines sex differences in alcohol consumption, suggesting that they are related to a nomadic or rural settlement, low accumulation of food resources, and strong child training pressure toward achievement. The authors suggest that societal norms often limit drunkenness in women because women's responsibilities (such as childcare) would deter incapacity due to intoxication.

This article uses a Darwinian approach, predicting that hierarchies persist and increase in social evolution because they increase fitness for individuals at higher levels within the hierarchy who choose to further social assymetry and benefit their fitness at the expense of the greater group. Polygyny is used as the indicator of fitness. Correlations tested support the hypothesis.