World's most premature babies celebrate first birthday
A Canadian girl and boy born over four months premature and not expected to survive have celebrated their first birthday with a Guinness World Records nod as the world's most premature twins.. Weighing just 330 grams (0.72 lbs.) and 420 grams (0.92 lbs.), respectively, they are also the lightest twins at birth ever, Guinness World Records (GWR) said on its website.