Think about the article. Why are many middens located at the edge of a group's territory?
They send a friendly invitation to possible mates.
They send a stern warning to other animals to stay away.
They send a message that enemies in other large social groups cannot see.
They send a message to other large social groups that food is nearby.
The correct answer is: They send a message that enemies in other large social groups cannot see.
Middens are essentially garbage dumps or refuse piles where animals deposit their waste, such as bones, shells, and other remains. These middens serve multiple purposes for the animals that create them, including marking their territory and communicating with other animals. The reason why many middens are located at the edge of a group's territory is to send a message to enemies in other large social groups that cannot be overlooked easily.
By placing the midden at the edge of the territory, the group is essentially broadcasting a warning to outsiders that they are present and ready to defend their territory. This tactic helps deter aggression from other animals and minimizes the potential for conflict. Additionally, by placing the midden at the edge, the group can keep the activities within their territory concealed from enemies in other social groups, maintaining a strategic advantage.