Hong-Shan Dong, graduate student at the Sperm Laboratory, passed thesis defense for Master's Degree of Science on June 19, 2008 at Zhejiang University. This picture was shot right after the committee announced its decision of Mr. Dong's defense. Committee members include Prof. Jian-Zhong SHAO, Prof. Fan JIN, and Prof. Qing-Feng YAN. From left to right: Prof. Fan JIN, Prof. Jian-Zhong Shao, Mr. Hong-Shan Dong, Dr. Wan-Xi Yang, and Prof. Qing-Feng Yan. (Photo by Ying HE)