In the grand tradition of trying to define exactly what comprises life, THE BARCODE OF LIFE features a host of prize-winning artists, including Kyoto Prize-winner Dan Janzen, Joseph Rossano, Costa Dvorezky, Sylvia Benitez and Michel Meyer. Through their work, each artist venerates the value of the planet and the life-forms that inhabit it, from the Central American environment to the beginning of time to cliff divers to the lifespan of butterflies. Through Jan. 30. Free. Tues.-Fri., 10 a.m.-5:30 p.m.; Sat., 11 a.m.-5:30 p.m. Bill Lowe Gallery, 1555 Peachtree St., Suite 100. 404-352-8114. www.lowegallery.com.