A baby panda is weighing in as the biggest born in captivity.

The panda's mother, Zhang Ka, spent 34 hours in labor, giving birth to the half-pound baby in China.

According to Zhang Hemin, head of the Wolong Giant Panda Research Center, "The process was the longest in the history of panda reproduction."

According to the Daily Mail, the baby is unrecognizable from the fluffy black and white adult it will one day become. Pandas, notoriously difficult to breed in captivity, have been delivering something of a baby boom. Two twin panda sisters, also aged six, gave birth to two pairs of twin male cubs on Sunday and Monday.