The photo shows four tiger cubs born on Friday at the Hangzhou Wildlife Zoo, east China's Zhejiang Province.

These four cute cubs are unique. Not only are they the result of the first successful reproduction of Siberian tigers at the zoo, but each has a distinctive stripe pattern that can be used to identify them.

The quartet's mother is not able to suckle them, so the zoo will find a wet nurse. The Siberian tiger is the largest of all the big cats.

(China.org.cn March 17, 2003)