Since then, eight panda cubs have been born at the zoo, making it the first institution outside of China to breed the species.
Giant panda cubs weigh 45 kg (100 pounds) at one year, and live with their mothers until they are 18 months to two years old.
Since 1990, there have been only five panda cubs born in the United States.
She is the first giant panda cub to survive to adulthood in the United States.
He is the first panda cub born at the National Zoo to survive for more than a few days.
Following a Chinese tradition, panda cubs are not named until they are 100 days old.
It's a red panda cub, one of only a handful to have been born in captivity.
He was the first panda cub to be born at the zoo and live for more than a few days.
It may prey on panda cubs and smaller marten species, such as sables.
At birth, a panda cub weighs less than five ounces, and many never live to be 200-pound adults.