A. and M. are two former lab rats who met in grad school, got married, left the bench, and settled in suburban D.C. A successful experiment in developmental biology resulted in a bouncing baby boy, Finn, in October 2006. He was joined in April 2009 by his little sister Lucy. Add to that a neurotically needy cat, lengthy commutes and the joys of homeownership, and there's never a dull moment! E-mail them at uncontrolledexp at gmail dot com.