It could be territorial instinct or if their is a male in the cage.
no
no
i have 2 15 months old female guinea pigs can i introduce a new baby guinea pig
It depends where you live, who your buyer is, et cetera.
2 to 6 babies.
If you want 2 pigs, you have to get them at a young age together and they should preferably be two males as they are less prone to fighting. I've had 5 gp
No. The females will kill each other.
get 2 female they get along well but get them about the same sise
2-3 days
It is almost definite that they will fight, but i would suggest that you try it, but make sure you supervise them just in-case.... GOOD LUCK..... x
2 female Bettas can not produce young. I guess it is possible that two females could go through the mating processes but I have never known it to happen with Anabantids of any species.
Guinea pigs (both male and female) have 2 nipples on the lower abdomen.