Marmosets are small primates belonging to the family Callitrichidae, primarily found in the forests of South America. They are known for their distinctive features, including their long tails, large eyes, and soft fur. Marmosets typically weigh between 5 to 15 ounces and are social animals, often living in family groups. These primates are omnivorous, feeding on a diet that includes fruits, insects, and small vertebrates. Marmosets are also known for their unique vocalizations, which help them communicate with each other. Their small size and playful nature make them popular in the pet trade, although they require specialized care.