What if a guinea pig starts shaking and purring when pet on the back?

It's great that you're paying attention to your guinea pig's behavior! It's normal for guinea pigs to vibrate or tremble when they're happy and relaxed. This is often accompanied by purring noises, which are like a low rumbling sound. It's their way of showing contentment!

Here's what you need to know:

* Vibrating or trembling: This is a sign of relaxation and contentment. It's similar to a cat purring.

* Purring: Guinea pigs don't technically purr like cats, but they make a low rumbling sound that can be heard when they're happy and comfortable.

* Other signs of happiness: Look for other signs of contentment, such as relaxed posture, slow blinking, and a soft, "wheeking" sound.

Important Notes:

* Context matters: While shaking and purring often mean your guinea pig is happy, it's important to consider the context. If they're shaking violently, seem distressed, or make other unusual noises, it might be a sign of illness or discomfort.

* Vet visit: If you're ever unsure about your guinea pig's behavior, it's always best to consult with your veterinarian. They can help you determine the cause of any unusual behaviors and recommend appropriate treatment if needed.

Enjoy your bonding time with your happy little guinea pig!