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Happy Rat Sounds

Do a YouTube search for "rat" and "brux" and you'll find lots of grainy videos of bruxing pet rats. Rat teeth continually grow throughout their lives, and so they need to constantly use them to both keep them sharp and at their usual length. One way they do this is by bruxing or grinding the teeth together, usually producing a distinct audible crunching sound. Bruxing is associated with happy rats. Because one of the muscles connecting the rat jaw to the skull runs through the eye socket, a feature unique to rats, a really happy rat will brux so hard that they also boggle, meaning that their eyes vibrate. There are YouTube videos of that too.

So are these rats happy? Eventually, as Scribble became more comfortable in her new surroundings, she started to brux. When she bruxes, most of the time it sounds like two sandpaper blocks sliding quickly against each other. Sometimes though, her bruxing is so loud it sounds like snapping a handful of small twigs. Scribble can unexpectedly brux happily when she is about to receive a particularly exciting treat, like fresh peas. And sometimes she bruxes when she's snuggled next to a human inside a shirt, usually up near one shoulder, with the fabric pressing around her. She's also been known to sit on my shoulder and alternate between bruxing and whuffling in my ear.

Eek also appears to brux, but not audibly. During her nestled-in-the-sweatshirt petting sessions, she clearly is over-the-moon happy. Eek's jaw vibrates, but there is not an accompanying bruxing sound. But making up for her lack of bruxing sounds, Eek chirps in happiness. These are quick cheeps, a handful in rapid succession.

It's very satisfying to know your rats are happy!

Eek stretched out happily on her back


A fascinating discussion is worth comment. There's no doubt that that you
should publish more about this issue, it may not be a taboo matter but usually people do not talk about these issues.

To the next! Many thanks!!

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Blog_post | by Dr. Radut