1. A biological specimen-culturing assembly comprising: a) a specimen growth-supporting incubator, said incubator having at least one specimen-supporting shelf; b) one or more optically transparent specimen container(s) positioned in said incubator on said shelf; and c) specimen growth-monitoring equipment associated with said incubator to visually monitor individual specimen development in said container(s) during a specimen growth cycle, whereby individual specimen development can be visually ascertained externally of the incubator without the need to remove the specimen(s) from said incubator during said growth cycle.