1. A robotic life form responsive to a changing environment sensed by the robotic life form, said robotic life form comprising: a robotic body simulating a young Camarasaurus articulated for motion upwardly and downwardly and from side to side and supported by front and rear legs terminating in respective feet, each of said legs having at least two joints, said body having a neck terminating in a head provided with eyes and a mouth, internal and external input sensors located on said robotic body and responsive to touch, sound and lighting conditions, motion, food, temperature, voice commands, time of day, and obstacles and hazards, including a head touch sensor, a plurality of touch sensors extending along a torso of said body, and a plurality of touch sensors on said feet, means responsive to said sensors for determining drive index levels in a plurality of animation groups comprising a mood of the robotic body corresponding to one of a plurality of drive index levels from sad to happy, a physical state of the robot corresponding to one of a plurality of drive index levels from exhausted or sleepy to energetic, a state of the robotic body determined by food drive index levels from hungry to overfed and sick, health drive index levels from sick to healthy, and emotion drive index levels of the robotic body from fearful to excited, and a plurality of servo actuators associated with said robotic body and responsive to dominant ones of the drive indexes selected in accordance with priority criteria associated with each of the drive index levels for causing the robotic life form to execute animations resulting therefrom and consistent with born-in attributes of gender, activeness, temperament, obedience, tone, volume and intelligence.