Zoo Atlanta's Panda twins are no longer 'Cub A' and 'Cub B'! On October 23, zoo officials announced the new names of their twin Panda cubs: Mei Lun ('may loon') and Mei Huan ('may hwaan'). The names originate from a Chinese idiom that means "something indescribably beautiful and magnificent." Following Chinese tradition, the names were announced on the same day the cubs turned 100 days old.

Do you remember how tiny they used to be? Revisit our first story about the newborns here.

Want to take a peek? Zoo Atlanta has a live Panda Cam.

Photo credits: Zoo Atlanta

See how the cubs have grown over their first 100 days of life:

See more photos after the fold!