Gerbils and guinea pigs are both popular small pets, but they belong to different families and have distinct differences in their appearance, behavior, and care requirements.

Appearance: Gerbils are small, slender rodents with a long tail, large eyes, and soft fur. They are usually around 4-5 inches in length, with a lifespan of around 2-4 years. Guinea pigs, on the other hand, are larger and more rotund, with short legs, rounded ears, and coarse hair. They can grow up to 10-12 inches in length, and can live up to 7-8 years with proper care.

Behavior: Gerbils are highly active and social animals, and are known for their curiosity and agility. They are very active during the day, and enjoy playing, digging, and exploring. Gerbils are social animals and prefer to live in pairs or small groups, as they thrive on companionship and social interaction. In contrast, guinea pigs are more sedentary and prefer to spend their time lounging and eating. They are social animals as well and need to live in groups or pairs, but they are not as active as gerbils.

Care Requirements: Gerbils and guinea pigs have different care requirements when it comes to housing, diet, and maintenance. Gerbils require a cage with plenty of space to move around and play, as well as a deep layer of bedding for digging and burrowing. They also require a varied diet of seeds, nuts, and fresh fruits and vegetables, as well as clean water and a regular cleaning schedule for their cage. Guinea pigs require a larger cage with plenty of room to run, hide, and play, as well as a diet of hay, fresh vegetables, and pellets. They also require regular grooming to keep their hair clean and healthy.

In summary, gerbils and guinea pigs have many differences in their appearance, behavior, and care requirements. While gerbils are small, active, and social animals that require a lot of space and stimulation, guinea pigs are larger, more sedentary, and require a specific diet and grooming routine. It’s important to research and consider the needs of each species before deciding which one is the right fit for your lifestyle and home.