World's smallest baby

When Rumaisa Rahman was born 15 weeks before her due date at a Chicago hospital, she weighed just 8.6 ounces, less than a can of soda. Three months later, she now weighs 2 pounds 10 ounces. Rumaisa's twin sister Hiba is slightly larger and may leave the hospital this month. Doctors expect Rumaisa to stay for a few additional weeks, but fortunately the prognosis is very good. Link