Primitive reptilian humanoids of Delta Theta III who capture Kirk, Spock and the Pandronian observer Bem, and who are watched over by a powerful disembodied intelligence that regards them as its children.
The natives of Delta Theta III are large, lizard-like humanoids living at a tribal, pre-industrial level, with spears, wooden cages and simple villages. Starfleet classes the planet as newly discovered, and the Enterprise is sent to plant monitoring devices so that the culture can be studied without interference.
They appear in the Animated Series episode Bem. The honorary commander Ari bn Bem, a Pandronian colony creature, swaps the landing party's equipment and wanders off to be caught by the natives, and Kirk and Spock are taken prisoner while trying to recover him.
The planet is also home to a non-corporeal intelligence that speaks as a protective parent of the natives. It resents the intrusion, neutralises the visitors' weapons and finally lets them go on the promise that the world will be left alone.