In a rare occurrence, identical twins Sofia and Isabella Walker were born on leap day. The twins were born at UC Davis Medical Center to parents Josefina and Gregory Walker of Stockton.

“We feel blessed,” Gregory said in a press release.

The rare leap year twins shared an amniotic sac while in the womb, and were delivered through cesearean secion at 32 weeks gestation. Sharing an amniotic sac while in the womb is a rare condition which affects only 1 percent of all twin pregnancies in the United States.

“The rarity of this particular type of twins is 1 in 40,000 to 1 in 65,000 births,” Gregory said. “We feel very special.”

Hannah Joy is a student and childrens' literature enthusiast. She enjoys singing, nature walks, and hummus. She hopes to bring joy and truth into the world through the written word.