L3
讲座
1. What does the professor mainly discuss?
How social behavior develops in chimpanzees
Different types of reciprocal behavior in chimpanzees
The development of communication in chimpanzees
Whether unselfish behavior exists in chimpanzees
2. Why does the professor mention grooming behavior in chimpanzees?
To give an example of helping for a selfish reason
To demonstrate that chimpanzees engage in social behavior
To provide a clear instance of chimpanzees practicing altruism
To provide evidence of communication that is not language based
3. According to the professor, what two factors have discouraged chimpanzees from helping others in previous experiments?（多选题）
Having to choose to give up food
Competition for group rank
A lack of direct request
A lack of previous social interaction
4. Why did researchers give chimpanzees the correct tools in the matched condition in experiment one?
To verify that the chimpanzees knew what to do with them
To find out how often chimpanzees would trade tools when they did not need to
To determine which tool each chimpanzee preferred
To ensure that the chimpanzees would not become too familiar with the testing condition
5. What can be inferred from the results of experiment two?
Mother chimpanzees interact with different offspring in different ways.
A chimpanzee’s position in the social hierarchy will determine whether it will behave altruistically.
Requests are more important than reciprocity in motivating chimpanzee helping behavior
Chimpanzees lack the ability to behave altruistically.
6. What is the professor’s opinion of the lack of voluntary altruism in chimpanzees? A. It suggests that the chimpanzees’ behavior was selfish.
It shows that chimpanzees are not as social as previously thought.
It might be influenced by the genetic relationship of the chimpanzees.
It is the result of chimpanzees’ inability to understand the needs of others.
