Rat from Smartest Animals in The World

Rats often inhabit places close to human settlements, and are often kept as pets. They are intelligent, they like playing with toys and are different from those rats which live in wilderness. Since they are often used in laboratory researches, it was noted that they easily and quickly find holes and shortcuts. A recent research has shown that brown rats are aware of their own thinking processes, which, until then, was considered a characteristic typical only to man. Now we understand why, in Chinese culture, rats are so appreciated for their resourcefulness and shrewdness.