World's oldest male giant panda celebrates 31st birthday in H.K.

An An, the world's oldest male giant panda in captivity, celebrated his 31st birthday Tuesday at Hong Kong's Ocean Park -- and a 50 percent chance of becoming a dad.An An, who was born in the wild in 1986, has been diagnosed with high blood pressure, arthritis and a cataract, but is considered to be in stable health, according to the amusement facility.Ocean Park houses two other giant panda - male Le Le and female Ying Ying, both gifts from China. And on the advice of the China Conservation and Research Centre for the Giant Panda, Ocean Park has utilized Le Le's fresh semen and An An's fro…READ FULL ARTICLE