* Freezing: Guinea pigs will often freeze when they are scared. This is a natural defense mechanism that helps them to avoid being seen by predators.
* Running away: If a guinea pig feels threatened, it will usually try to run away.
* Squeaking or chattering: Guinea pigs may squeak or chatter when they are scared. This is a way for them to express their fear and to warn other guinea pigs of danger.
* Hunching up: Guinea pigs may hunch up their bodies when they are scared. This makes them look smaller and less threatening to predators.
* Hiding: Guinea pigs may try to hide when they are scared. They may hide in a corner of their cage, under a piece of furniture, or in a tunnel.
* Not eating or drinking: Guinea pigs may stop eating or drinking when they are scared. This is because their bodies are in "fight or flight" mode, and they are not able to focus on eating or drinking.
* Drooling or urinating: Guinea pigs may drool or urinate when they are scared. This is a sign of extreme fear and distress.
If you think your guinea pig is scared, it is important to try to identify the source of the fear and to remove it. You can also help to calm your guinea pig down by providing them with a safe and comfortable place to hide, by talking to them in a soothing voice, and by petting them gently.