Infant Lowland Gorilla on Mother's Back Key Ring

This images shows an infant lowland gorilla riding on its mother's back. Mothers can be seen supporting the infants for the first few months of life. Birth weight averages 4 pounds. For the first couple of years, gorilla infants grow at twice the rate of a human baby. They can crawl and ride on their mothers' backs at 3 months old. They may continue to ride on their mothers' backs, chests or legs until they are 3.5-4 years old. | "Smithsonian" and the Smithsonian logo are registered trademarks o