San Diego (CBS 8) - Bai Yun, a 20-year-old female giant panda at the San Diego Zoo, gave birth Sunday. A team of researchers observed Bai Yun deliver the baby cub, around 2:10 p.m., while watching the Zoo's closed circuit camera mounted inside the birthing den, according to San Diego Zoo officials.
Bai Yun is one of the oldest giant pandas known to give birth. This is the sixth cub born at the San Diego Zoo, the most born at a breeding facility outside of China. All six giant panda cubs have been born to Bai Yun, according to San Diego Zoo officials.
Newborn giant panda cubs are born pink and grey, without sight, and weigh an average of four ounces. Their trademark black-and-white markings develop within the first months.
The sex of the cub will not be known until animal care staff can examine the cub, which is expected to happen within two months.