AP BIOLOGY

Detailed explanation-1: -Aggressive behavior is used to intimidate another animal of the same species. Animals fight or threaten one another in order to defend their young, their territory, or another resource, such as food. Aggressive behavior includes bird calling, teeth baring, or growling. It is a message to “keep away”.

Detailed explanation-2: -Aggression is defined as threats or harmful actions directed toward another individual and can include threat displays, lunging, growling, snarling, snapping, and biting. “In animals, aggressive behaviors are a means of communication."

Detailed explanation-3: -Biologists commonly distinguish between two types of aggressive behaviour: predatory or antipredatory aggression, in which animals prey upon or defend themselves from other animals of different species, and intraspecific aggression, in which animals attack members of their own species.