You will hear a recording. Select the paragraph that best relates to the recording.

 

(1) We used to think that animals have friends only for the biological reasons because they are unable to be generous and give up something important for a friend without expecting anything back from them.

(2) We used to think that animals have friends only for the biological reasons because we focused too much on how animals need to survive with the help of another animal.

(3) We used to think that animals have friends only for the biological reasons but now we know this not to be free, however, animals cannot have friends from the different species.

(4) We used to think that animals have friends only for the biological reasons but we are discovering that animals can also have friends like humans can, and can sometimes have friends from the different species.

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