This SIG is intended to bring together researchers interested in the combination of physiological data obtained via implantable radio-transmitters and obtained from behavioral observation tools. Three leading experienced researchers will share the fruits of their years of laboratory experience working with fully implantable laboratory telemetry. Their presentations will communicate the details of the telemetry applications and methods they have employed to dramatically reduce animal use, to improve data quality, to do better science, to maximize the amount of information gained from each experimental animal, and to reduce animal stress and discomfort. An emphasis will be placed on the benefits of combining behavioral data obtained by different methods with physiological data.