A 10-year-old giant panda at the China Wolong Giant Panda Protection and Research Center gave birth to a pair of twins at a nature reserve in southwest China’s Sichuan Province in the early hours of Thursday.
The newborn cubs are the heaviest panda twins to ever have been born since weight has been recorded. The male and female cubs weigh 181.7 (6.4 ounces) and 220 grams (7.7 ounces) respectively.
Generally, cubs weigh around 150 grams (5.2 ounces.)
It is rare to find twins that both weigh more than 180 grams (6.3 ounces.)