Here's why they are considered social:
* Herd behavior: Guinea pigs live in herds for protection and social interaction.
* Communication: They use a variety of sounds, including squeaks, chirps, and whistles, to communicate with each other.
* Grooming: Guinea pigs groom each other, which strengthens social bonds and helps keep them clean.
* Playful behavior: They enjoy playing with each other, which further enhances their social connection.
While guinea pigs can be kept as solitary pets, they are much happier and healthier when kept in pairs or small groups. This is because they have a strong need for social interaction.