Rats are often called "pocket dogs" because they are so friendly, smart, and love to spend time with their owners! They are some of the most social pets you can have. Understanding why they "boggle" their eyes or why they love to groom you will help you build an amazing bond with your rats. In 2026, we focus on helping your rats use their big brains and stay happy!
The Golden Rule: Rats Need Friends
The most important thing to know about rat behavior is that they must live in pairs or small groups. A lone rat is a lonely rat and can become very sad and even sick. Having a friend to sleep with, wrestle with, and groom is essential for their happiness and a core part of their housing needs.
The Joy of "Boggling" and "Bruxing"
Have you ever seen your rat chatter their teeth so fast that their eyes seem to vibrate? This might look a bit scary, but it is actually the ultimate sign of a happy rat!
- Bruxing: This is when a rat grinds their teeth together because they are feeling relaxed and content, sort of like a cat's purr.
- Boggling: When a rat is extremely happy, the muscles they use for bruxing can make their eyes vibrate or "boggle." If your rat is doing this while sitting with you, it means they love you very much! You can learn more about these signs of a happy rat in our health guide.
Friendship Sign: Power Grooming
Rats love to groom each other to show they are friends. Sometimes, one rat might be a bit "bossy" and groom the other very intensely—this is called "power grooming." It is their way of saying "I'm the boss, but I still like you!" As long as there is no squeaking or fighting, it is a normal part of rat life.
Smart Rats: Learning and Solving Problems
Rats are incredibly intelligent! They can learn their names, do tricks, and solve puzzles.
- Training is Fun: You can teach your rats to "spin," "come when called," or even play a tiny game of basketball! Using small treats as rewards is a great way to bond with them.
- Foraging: Rats love to work for their food. Hiding treats in boxes or paper bags will keep them busy and happy for hours.
When are They Active?
Rats are mostly active at night (nocturnal), but they will often wake up during the day to play with you if they know you have treats! They love having a routine and will soon learn when it is "out of cage" time.
Understanding Rat "Popcorning"
Just like guinea pigs, young rats often "popcorn" when they are excited. They will suddenly hop, twist, and spring into the air. It is a joy to watch and means they are feeling very playful!
Conclusion: A Bond Like No Other
By giving your rats friends to live with and lots of mental games to play, you will have a group of very happy and affectionate pets. Rats are truly special and will treat you as part of their family. Check out our other guides for tips on cages, food, and rat health!