an innate response to threat perpetrated by other organisms, and designed to preserve the species. Examples include: maternal aggression (protect the young), predatory aggression (provides food), sexual aggression (reproduction), antipredatory aggression (response to fear), inter-male aggression (eliminates competition for mates, and instrumental aggression (indirect, and occurs when followed by a reward).
ANIMAL AGGRESSION: “The dog exhibited animal aggression when another dog attempted to eat it’s food. “