Why Are Rats Smart?
Although rats are smaller than humans, their brains are actually very similar to ours. They have a highly developed visual system, and are even able to recognize 3-D objects. Rats also have a limited knowledge base, but that doesn’t stop them from displaying intelligence. In a study published in Current Biology, researchers found evidence that rats are able to conceptualize and apply epistemological principles.
Moreover, rats use their spatial intelligence to escape danger. They are able to avoid predators by using familiar pathways, and getting to their hiding places in the shortest time possible. This skill depends on their previous experience, and they react cautiously to any sudden changes to their living space. Rats are also able to recognize their own dimensions, which makes them superior navigators.
Scientists have been using rats for psychology experiments for almost 100 years, largely because they are similar to human brains. Because of this, they have similar decision-making abilities, are able to recognize a good pattern, and are less likely to second-guess themselves than humans do. Additionally, mice can be used as models for disease conditions, and putting mice through psychological experiments could help researchers link diseases with behavior.
Rats also exhibit emotional intelligence. They can recognize when other rats are experiencing pain and can help them. They can recognize faces on other rats and respond to their calls. Similarly, they are able to remember names and respond to their names. They are also able to distinguish between different types of food, and the females can aggressively defend their nests.