Rats have been found to sense danger and navigate around it by the empathy they show each other. Empathy, found in the anterior cingulate cortex of the brain, is used to read the fears of other rats in order to avoid encountering danger. If a rat looks scared, it helps as a cautionary sign to the onlooking rat and cheerfulness indications the environment is safe. An observing rat shares the emotions of others because it enables it to prepare for danger or avoiding becoming a victim themselves. With rats, the more experiences match those of the rats they observe, the more they can empathize with what they feel, hence it takes one to know one. Empathy may drive rats to help each other.
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