I highly recommend you read the full article for this. It is fascinating that these rats would be able to understand the pain of their friends and help them. I think the truly amazing part of the study is that when made to choose between setting their friend free and sharing food, eating the food and then freeing their friend, or eating the food and not freeing their friend, more than half the rats shared the food with their buddy! I always knew rats were smart, but I didn’t think of them as empathetic until now.

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