Pets that are generally happiest in pairs include:
Guinea pigs: Guinea pigs are social animals and thrive in pairs or small groups. They enjoy companionship and interaction with other guinea pigs.
Rabbits: Rabbits are also social creatures that benefit from having a companion. They can form strong bonds with another rabbit and keep each other company.
Parakeets: Parakeets are highly social birds that enjoy the company of other parakeets. They can engage in playful behavior and vocalizations when paired with a companion.
Rats: Rats are intelligent and social animals that thrive in pairs or small groups. They enjoy grooming each other, playing together, and sleeping in close proximity.
Fish: Some fish species, such as certain cichlids and angelfish, are known to be happier and less stressed when kept in pairs or groups. They can exhibit more natural behaviors and interactions when in the company of others of their kind.