A keeper takes care of the newborn twin panda cubs. (Photo/Chengdu Research Base of Giant Panda Breeding)
Weighing over 200 grams each, a pair of male-female panda twins were born in Chengdu, capital of southwest China's Sichuan Province, local authorities said Monday.
They are believed to be the heaviest captive-bred panda twins born in the world, according to the Chengdu Research Base of Giant Panda Breeding.
The male giant panda cub weighs 211.6 grams and the female 209 grams. They were born at the base on Saturday morning and are in stable condition.
The average birth weight of panda cubs is around 150 grams. It is rare to see both twin cubs weigh over 200 grams each at birth, experts said.
As of Monday, a total of 298 giant panda cubs have been born at the Chengdu research base.