Panda twins were born at Zoo Atlanta Monday, the first twin pandas born in the United States since 1987. Zookeepers were expecting only one cub and were surprised when the giant panda named Lun Lun gave birth to baby panda twins.
Adam K. Thompson/Zoo Atlanta/AP
The 15-year-old panda went into labor Monday afternoon and gave birth to the first cub at 6:21 p.m. EDT and the second two minutes later. Hines said zookeepers who had been anticipating only one cub based on a recent ultrasound were surprised by the first-ever twin panda births at Zoo Atlanta.
"We have twins!" Zoo Atlanta announced on its website.
An ultrasound on June 30 determined that Lun Lun was pregnant with her fourth cub. Hines says zookeepers weren't expecting the tiny duo, however.
The twin cubs are the first giant pandas to be born in the United States in 2013, Hines added.