National Zoo to Reveal Sex, Paternity of Panda Cub

The Smithsonian's National Zoo plans to reveal the sex and paternity of its 2-week-old giant panda cub.

The zoo has scheduled a press event Thursday to announce more details about the cub and details about a second stillborn cub.

The surviving panda cub has been described as healthy and active. Zookeepers conducted a 10-minute physical examination days after it was born. Veterinarians said the cub had a steady heartbeat and appeared to be digesting its food.

It takes time to determine a cub's gender. A DNA sample also was collected to determine the cub's paternity.

Panda mother Mei Xiang (may-SHONG) was artificially inseminated with sperm from Tian Tian (tee-YEN tee-YEN), the male panda at the National Zoo, and a panda named Gao Gao at the San Diego Zoo.

More ABC News