Columbia subject headings:
Aggressive behavior in animals.
Human behavior.
Primates--Behavior.
Social Darwinism.
Social interaction.
Harvard subject headings:
Aggressive behavior in animals.
Human behavior.
Primates--Behavior
Social Darwinism.
Social interaction.
Princeton subject headings:
Aggressive behavior in animals.
Human behavior.
Primates--Behavior.
Social Darwinism.
Social interaction.