How long can a guinea pig remember something?

Answer 1

Guinea pigs can be trained to perform behaviors. This is a type of memory, however the activity needs to be closely related to food/have food as a reward.

For example, my five pigs all squeek loudly when the screen door slams (but not the heavy door) because they know I'm probably bringing them handfuls of grass.

Also, I've trained them to run up the stairs. This was accomplished by having the cage open at the top of the stairs and showing them how to jump one step at a time.

Addtionally, I have a "guinea pig song" that I sing to them, and then they begin to squeek (again knowing I am bringing them chow. In this case however, they don't respond to my children singing, but sometimes to the TV if the music is the same pitch.

Guinea pigs remember each other for better or worse. Lucy, one of my pigs, normally lives with Chrysanthum (her daughter), but I doubt she "remembers" that it is her daughter. Both pigs are terrified of the other two dominant pigs and when placed together immediately freeze.

Answer 2

Guinea pigs have a good memory and can remember things for several months. They can remember where they found food, how to navigate their surroundings, and remember people who have interacted with them regularly. However, their memory is not as advanced as some other animals.