What does "Active Sensing" mean?

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Active sensing is a behavior used by some animals to better understand their surroundings. Instead of just relying on their senses, these animals engage in specific movements or actions to improve the signals they receive from their environment.

For example, certain fish, like the Eigenmannia virescens, swim back and forth to keep track of places where they feel safe. When the signals from their surroundings become unclear, these fish start to make regular body movements. These movements help them gather clearer information, allowing them to react more effectively to what is happening around them.

By actively changing their position and movements, these animals reduce uncertainty about what they perceive. This makes it easier for them to navigate their environment and stay safe from potential threats. Active sensing is an important skill that helps many creatures survive in changing and sometimes unpredictable situations.