The infant usually begins to pronounce when it is almost a year old, but a newborn baby in China blasts this rule after his mother and nurse were shocked by his word - apparently - the word "Mama" at the age of 23 days only.
Despite the mother's acknowledgment that her baby often uttered the word unintentionally, she and her family felt astonished admiration when they heard it, the Daily Mail reported.
The baby was first delivered to a post-natal care center in Changchun, north China's Jilin Province, on Jan. 20.
The scene was filmed in a video clip documented by the mother of the baby, shared through social media, and in the tenth of the section, the baby appears asleep at a table while a nurse gently rubs his back.
Suddenly, the new baby hears "aiya," his mother eagerly said, "This child is very funny." But seconds later the baby suddenly utters "Mama", leaving his mother and medical staff in a state of daze.
The baby's mother told a television station that her son had completed a swimming lesson that day and had not fed him a little milk before the exercise to prevent him from vomiting, so hunger may have caused him to utter unusual sounds.
Babies can speak their first words between the ages of 12 and 18 months, and then the vocabulary is 10 to 20 words.
Commenting on the video, Zhang Xiaoming, director of children's psychology at Changchun Children's Hospital, said: "The baby accidentally gave Mama a word."
Zhang said children between one and two months of age were making vocal sounds like the throat and lips.
He went on to say that even though this child had said Mama very clearly, his pronunciation of the word was unintended.