replacement travel machine, but with a predominantly black colour scheme and cleaner lines. Dalek hybrids Hybridisation between Daleks and other species has been a recurring theme in the Doctor Who television programme since the 1960s. Physical Hybrids In Revelation of the Daleks (1985) Davros creates a new breed of Dalek mutants to command. He uses as source material the severed heads of terminal human medical patients in the Tranquil Repose mausoleum and suspended animation facility on the planet Necros. During the early stages of the conversion process the victims retain some memory and awareness of their humanity, but by the end of the metamorphosis they have become fully Dalek in nature, if not appearance. In "Dalek" (2005) a dying Dalek's casing is touched by Rose Tyler, a companion of the Doctor. During this brief physical contact the Dalek absorbs enough of her DNA to regenerate itself and its damaged travel machine. It later becomes apparent that this genetic material has caused it to mutate further, as it begins to experience human emotions. It finally becomes trapped in an agony of conflict and self-loathing, and destroys itself. In "The Parting of the Ways" (2005) the Emperor Dalek and the few surviving members of its crew hide in space for centuries after the Time War, harvesting organic material from captured humans and genetically manipulating it to rebuild their race. The Emperor tells the Doctor that a new Dalek army has been created using "filleted, pulped and sifted" human bodies, although they still consider themselves to be "...pure and blessed Dalek". When a Dalek is destroyed and the mutant revealed it is of a different appearance to the mutant seen in "Dalek", the prop hinting at a human heritage. Mutants originating from Kaled stock appear to have a closed, vestigial second eye, set below and to one side of the sighted eye. The mutant in "The Parting of the Ways" seems to have two identical symmetrically set eyes above which is a prominent supraorbital ridge. A large fleshy mass protrudes below the eyes, with folds suggestive of a mouth-like orifice. In the two-part story "Daleks in Manhattan" and "Evolution of the Daleks" (2007) the Cult of Skaro, stranded in 1930s America following an emergency temporal shift, attempt to rebuild the Dalek race. Their leader, Dalek Sec, traps in its casing Mr. Diagoras, a human collaborator, and merges with him to become a Human/Dalek