Cute Cubs

(Image credit: Zoo Atlanta)These adorable panda cubs were born at Zoo Atlanta on July 15.

Twin Panda Cubs

(Image credit: Zoo Atlanta)Twin panda cub brothers snuggle up at Zoo Atlanta, and now they have names: Mei Lun (may loon) and Mei Huan (may hwaan).

Cub Checkup

(Image credit: Zoo Atlanta)The panda twins get examined at about a month old.

Mom and Baby

(Image credit: Zoo Atlanta)The twins were born to panda mom Lun Lun.

Sleepy Bears

(Image credit: Zoo Atlanta)Lun Lun snoozes with one of her cubs.

Surprise Birth

(Image credit: Zoo Atlanta)The twins were a surprise to Zoo Atlanta's panda keepers. It is difficult to tell if a female panda is pregnant, since they typically don't cooperate with an ultrasound and most undergo a "pseudopregnancy" if they don't conceive.

Giant panda newborn

(Image credit: Zoo Atlanta)One of the twin giant panda brothers born at Zoo Atlanta gets examined.

Just born!

(Image credit: Zoo Atlanta)The Zoo Atlanta's twin panda cubs looking snuggly on the day of their birth, July 15, 2013.