Double Trouble! Pregnant Panda Surprises World by Giving Birth to Twin Cubs
Because pandas like their privacy when giving birth, zookeepers didn't realize until a week later that she actually gave birth to two cubs.
Whoever said they don't like surprises has clearly never witnessed a panda giving birth to a pair of unexpected twin cubs.
Read: Scientists Fawn Over Googly-Eyed Stubby Squid: 'It Looks So Fake'
While officials at the Tiergarten Shonbrunn, or Vienna Zoo, knew Yang Yang the panda was pregnant, they had no idea she was expecting twins, according to a press statement.
Yang Yang, already a mother, gave birth in a dark nesting box away from the prying eyes of Austrian zookeepers.
Because pandas like their privacy when giving birth, zookeepers didn't realize until a week later that she had actually given birth to two cubs.
The little ones, who are only 4 inches long and weigh 3.5 ounces, will not be named until 100 days after their birth, because the chance of survival for both babies are only 50 percent in their first few weeks, experts said.
Read: 'Kent the Koala' Recovers From Dog Attack and Climbs Back Into the Wild
If all goes according to plan, Yang Yang and her two babies will appear in public for the first time in four months.
Yang Yang has previously given birth to three other cubs, Fu Long, Fu Hu, and Fu Bao.
Watch: Man in Bear Suit Challenges Tian Tian the Snow-Loving Panda
Trending on Inside Edition
Woman Says She Keeps Getting Dozens of Amazon Packages She Didn't OrderOffbeat
Family of Christian Glass Reaches $19 Million Settlement in Fatal Police Shooting of Colorado ManCrime
California Dad Fatally Struck by Car After Helping Ducks Cross Busy StreetNews
LAPD Volunteer Officer Who Survived Near-Fatal Bee Attack on Live TV Speaks OutHeroes
Man 'Eaten Alive by Bed Bugs' in Jail Cell After He Could Not Post Bail Died of 'Severe Neglect': AutopsyCrime