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People have long known that elephants are extremely intelligent and very social creatures. But many scientists remained doubtful that the animals could solve particularly complex tasks. Researchers in Thailand performed an experiment to test elephants’ ability to work together. To access a food reward, two elephants had to pull each end of a rope at the same time. If they pulled only one end, the rope would come to them, but the food would not. Six pairs of elephants were tested 40 times over two days, and every pair discovered how to acquire the food.
The elephants demonstrated ________.
A aggressiveness
B cooperation
C indignation
D obedience
The elephants demonstrated B cooperation.
Explanation: The experiment required both elephants to pull their ends of the rope simultaneously to access the food reward, which shows they needed to work together effectively. This behavior indicates cooperation, as they relied on each other’s actions to achieve the common goal of getting the food.