Behavioral Adaptation
Communication
This Adaptation is any form of messaging between two organisms. Some forms of this behavioral adaptation would would be gestures, facial expressions, or chemical signals. Organisms tend to use chemical signal such as pheromones that sets trails for other to follow. Pheromones can also be a good way to manipulate enemies.
Dog vs. Cat
Dog and Cat gaze at each other.
Ant Trail
Ants are leaving a pheromone trail leading to food.
Gaze
Lion is gazing out looking or giving some type of message.
Territorial
Most territorial animals are protecting there nest, den or even mating sites, mostly to defend this territory for resources. Usually this animals use vocal, visual or leave scents to mark their territory. If necessary to protect territory with their life, these organisms will, even though this doesn't happen often.