Another pair of twin cubs was born in the panda breeding base in Chengdu, the capital of Sichuan Province, early on Tuesday morning.

This photo, taken on September 2, 2008, shows the newborn panda cubs in the panda breeding base in Chengdu, Sichuan Province. [Photo:newssc.com]

The second cub only weighs 40 grams, the lightest recorded birth weight for a captive-bred panda. Experts are making every effort to keep the cub alive, Chengdu Evening News reports.

The cubs were born to a five-year-old "Fuwa", the archetype for "Jingjing the panda," one of the five Beijing Olympic mascots.

The breeding base has welcomed 17 newborn cubs so far this year, a record number which will further increase when several other expectant pandas deliver later this year.

(CRI September 3, 2008)