The document summarizes the key role of female monkeys (langurs) in guarding and protecting a troop of monkeys in a forest in India. It notes that the female langurs sounded alarms when they detected threats, mobilizing the troop to flee to safety. The summary describes how female langurs led the way as the troop escaped into the trees, with infants carried on their backs, when humans entered the forest and attempted to capture monkeys. It concludes that the female langurs played a central part in guarding the troop from dangers in the forest and ensuring its survival.