Q: What is “displaying”? A: “Displaying” is a way for chimpanzees to show excitement, aggression, dominance and/or to show off. Male and female chimpanzees—even young chimpanzees—display by pounding their feet, jumping up and down, standing tall, charging, running around, throwing rocks, making loud calls/barks, or pounding objects like tree trunks (called “buttress drumming”). Their hair typically bristles (called “piloerection”), making them look bigger and more threatening to others. Displayi