“Rats are very social and affectionate animals. They love being in the company of their own species or humans. They like playing together and love to sleep curled up together. They take care of the injured and sick rats in their group. When rats don’t have companionship, they can become lonely, depressed, anxious and stressed. A group of rats is called a mischief.
Rats are intelligent animals. They are more intelligent than rabbits, hamsters, mice, gerbils and guinea pigs for instance. They also have excellent memories. Once rats learn a navigation route, they never forget it.
Rats are very clean animals. They spend several hours each day grooming themselves and each other. They are less likely than dogs or cats to catch and transmit parasites and viruses.”