Giant panda gives birth to twin cubs at Tokyo's Ueno Zoo. See photos

The panda cubs are roughly the length of an adult human hand, as seen in a picture on the zoo's website.

A month ahead of the Tokyo Summer Olympic Games, the city has another reason to celebrate - giant panda Shin Shin has given birth to twin cubs at Ueno Zoo, the first panda birth there in four years. The Tokyo Zoo's website listed the two newborn pandas as being born an hour and a half apart at 1:03 am (1403 GMT) and 2:32 am on Wednesday. Their gender has not been determined, and they have not yet been named.