* Breeding: Guinea pigs are very fertile and can get pregnant even at a young age. If you don't want babies, keeping a male and female together is risky.
* Aggression: Even if you don't intend to breed them, males can become aggressive towards females, especially during breeding season. This aggression can lead to fights and injuries.
* Stress: Living with a male can stress a female guinea pig, especially if she's in heat.
The best way to keep guinea pigs together is to:
* House females together: Female guinea pigs generally get along well in groups, as long as they're introduced properly.
* House males together: Males can be housed together as well, but it's important to introduce them slowly and supervise them carefully.
Important Notes:
* Spaying and Neutering: Spaying and neutering can reduce the risk of aggression, but it's not a guarantee.
* Individual Temperament: Some guinea pigs may get along better than others, but it's best to err on the side of caution.
If you're unsure about whether your guinea pigs are a good match, it's always best to consult a veterinarian or a guinea pig expert.