Pandas' first one hundred days captured in time-lapse. The video shows the first 100 days of the cubs' lives, as they change from small, pink, bald babies, to creatures that look like miniature pandas.

Mei Lun and Mei Huan were born on July 15, 2013 to Lun Lun and Yang Yang at Zoo Atlanta and the pair have attracted attention nationwide. Mei Lun and Mei Huan are the first surviving giant panda twins to be born in the U.S.

However the mom is not able to care for both cubs. The reason why is because it is because giant pandas are born highly under-developed and require intense maternal care according to the panda's caretakers.

"It’s difficult for a mother to provide this care for more than one cub simultaneously. The best method to ensure that both cubs will survive is to alternate the cubs with the mother for the first few months."

This proven technique was first used in 1990 at the Chengdu Zoo, which housed the first pair of giant panda twins to survive in captivity. Enjoy the video below to see their development from day one to day 100.