Do Guinea Pigs Blink?

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As anyone who has spent any time around guinea pigs can attest they do not seem to blink very often.

This can be off-putting at first but you quickly get used to it.

And as it turns out there’s a good reason why guinea pigs don’t blink very often.

For one thing guinea pigs have relatively poor vision.

They can see shapes and movement but they don’t have the same level of visual acuity as we do.

This is because their eyes are located on the sides of their head which gives them a very wide field of view but doesn’t allow for the same level of focus.

Because of this guinea pigs have to rely more on their other senses like hearing and smell to get around.

And since they’re constantly on the lookout for predators they don’t have a lot of time to blink!

But there’s another reason why guinea pigs don’t blink as much as we do and it has to do with their tears.

Unlike us guinea pigs don’t have a tear duct that drains tears from their eyes.

This means that their tears just pool in the bottom of their eyes and can eventually lead to eye infections.

To prevent this guinea pigs have a third eyelid that comes up and wipes the tears away from their eye.

This third eyelid is called the nictitating membrane and you can usually see it when a guinea pig is sleeping.

So there you have it! Now you know why guinea pigs don’t blink as often as we do.

They don’t need to and it might even be harmful for them to do so!