Autonomous robotics
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Autonomous robots are robots capable of some measure of autonomomy. In particular, they are not teleoperated, but rather use artificial intelligence to provide control. This intelligent control sometimes includes automated planning and machine learning.
Energy autonomy
Researchers concerned with creating true artificial life are concerned not only with intelligent control, but further with the capacity of the robot to find its own resources through foraging (looking for food, which includes both energy and spare parts).
This is related to autonomous foraging, a concern within the sciences of behavioral ecology, social anthropology, and human behavioral ecology; as well as robotics, artificial intelligence, and artificial life.