revealed that a grendler's saliva is a cure for virtually any disease. Exploring further, the group encounters an intelligent subterranean indigenous species named the Terrians, who seem to have a symbiotic relationship with the planet and can only communicate with the colonists through a dreamscape that few of them understand. Kobas Small monkey-like creatures with a leather-like skin and large eyes. Kobas possess sharp claws, which they use like darts to incapacitate their intended food source. Once struck by a Koba-claw, a victim falls into a near-death coma for two to three days, but awakens with no permanent damage. Kobas have a great talent for mimicry. They are friendly toward those who are friendly to them, but are quick to defend themselves against possible predators. Humans During the series the colonists learn they are not the only humans on the planet; it had previously been used as a penal colony so the government could learn more about how to colonize the planet. Production Notable aspects of the series Earth 2 broke new ground by placing Devon Adair as one of the first female commanders in a science fiction television show, preceding the much better-known Captain Kathryn Janeway of Star Trek: Voyager by more than two months. The overarching plot of the show and various individual elements helped explore the Gaia hypothesis, mainly through the Syndrome, its effects on many children, and the subsequent healing of the illness after the Eden Project arrives on G889. During the show, various political and social themes were addressed as well. Throughout the series aspects of the relation of Terrians to the planet and to the colonists reflect the history of colonies with native populations and slavery. In "The Enemy Within", Julia is left behind by the group because of her treachery, addressing briefly what punishments are moral or even inhumane. Another aspect of this issue is addressed in "The Man Who Fell to Earth (Two)", when the group meets a man named Gaal who claims to be an astronaut but is revealed as a marooned criminal; when it is revealed that G889 had been used for many years as a penal colony, questions arise as to the motivations of the Council and their right to do so. In "Redemption", the group encounters a genetically enhanced killer called Z.E.D., who was left on the planet to dispose of all the humans he finds, who at