He joined the faculty in 1994 and has a research group that studies aspects of microbial ecology in a number of different environments. On this cruise, his group is examining how vent chemistry affects microbial community structure and composition. Craig received his B.S. from Florida Institute of Technology, his M.S. from San Diego State University, and his Ph.D. from Scripps Institution of Oceanography in 1989. He is 45 years old years old, and he and his wife, Amy, have two children: Ky, who is 13 years old, and 4-year-old Robin.