The other surprise about twins born in separate years...

[Star Tribune, January 03, 2012] Twins Beckett and Freya Humenny will grow up together, but they will never share a birthday -- or even a birth year. Beckett was born at 6:40 p.m. on New Year's Eve 2011. His sister, Freya, was born six hours later, at 12:26 a.m. on Jan. 1, 2012.

Allina Medical Clinic - Parkview OB/GYN Kaye Mickelson, MD, says doctors are no longer in a big rush to deliver twins close together.

"It's an old obstetrician way of looking at twins that you have to get that second one out within 30 minutes." Read more at startribune.com.