In 2199 CE, the only surviving Iscandarians are siblings, and do not necessarily represent the full range of features in the species. They are generally human in appearance, except for exceptionally brighter eye colors in some cases. The memories stored in Iscandarian brains can be accessed by equipment designed for humans. Genetic differences between the two species are negligible, enough for an Iscandarian woman to conceive a child with a human father. Despite the similarities with humans, Iscandarians possess significant psychic capabilities, including some telepathy and the ability to project individual consciousness into other beings and to take partial control of them ("Clockwork Prisoner", "The Whisper of the Witch", "Out of the Forest of Memory", "The Distant Promised Land").