The intensity of a snake alarm call is usually proportional to the snake’s size and proximity to the chimps. Basic alarm calls mean a snake has been spotted. Screams mean it is an imminent threat. But you have to recalibrate your understanding of snake calls when Annie is involved because to her, every snake is an imminent threat.
Even if it is a tiny garter snake, taking a nap on a grape vine well outside of the chimps’ greenhouse enclosure.
