they sqeak and the other usually sqeaks back
yeah
They do like company and would definitely prefer another guinea pig with them.
yes, but don't be surprised if the Guinea pig rejects it too. but it might not
Yes, i bought one Guinea pig and added another around the same time, and they get along great.
Rabbits/Bunnies do NOT make good cage mates for Guinea Pigs. The Guinea Pig needs another of its own kind to thrive. Even if it does have another Guinea Pig partner, the Rabbit/Bunny may try to kill, hurt, or eat them. I hope this answers your question!
Calling someone a guinea pig means that they are being called a 'test subject'. This originates from guinea pigs being used for tests.
If you only have one guinea pig get him/her another guinea pig friend of the same gender. It could be lonely.
Basically a crossbreed
No, only girls get pregnant :)
it's horny.
Yes because guinea pigs are very social animals. It is highly recommended to have more than one guinea pig!
You can't breed it if there is not another animal for it to breed with.