Rats are one of the less liked creatures in society. We see them as pests that carry diseases and only cause a disturbance in society. While a lot of that is true, they can also be friendly creatures. Scientists at Humboldt University of Berlin recently conducted a study on rats and how they react to being tickled. What they found out was that they enjoy being tickled like many humans do.
The typical hearing range of humans span between 20 Hz to 20 kHz. Rats vocalize at 20kHz to 100 kHz. They make long calls at 22 kHz when they are facing negative emotions such as being scared or annoyed. When they are happy they make short calls at 50 kHz. This occurs when they interact with other rats and play with one another or when they are given food.
In the video above, researchers place a rat inside a closed container where they begin tickling their rat. The rat lets mainly lets out short calls at 50 kHz indicating that they enjoy what they are feeling. In the video you can how they start following the hand for more tickling indicating that it enjoys what it is feeling.
While rats are indeed considered rodents, they still have familiar characteristics as humans and enjoy the sensation of being tickled. But we don’t recommend you try and tickle a rat when you come into contact with one.