The Sontarans (/sɒnˈtɑːrənz/ son-TAR-ans) are a fictional race of extraterrestrial humanoids created by Robert Holmes for the British science fiction television series Doctor Who, also seen in spin-off series The Sarah Jane Adventures.
However, in the Doctor Who FASA role playing game, the story appeared that all Sontarans are cloned from General Sontar, who took over his home planet and named it after himself. 5.
The Toclafane are the last descendants of humanity, living around the year 100 trillion and wandering across space just as the 'heat death' of the Universe began. They are notable for their last-ditch effort at survival: the invasion of Earth, circa 21st century.
In the episode, the alien time traveller the Tenth Doctor (David Tennant) hides from his pursuers, the Family of Blood, in 1913 England. He transforms himself into a human and implants the false persona of a schoolteacher called "John Smith" to avoid detection until the Family's life runs out.
Yet, as far as I can understand, there were no female Sontarans. As a species of clones that were bred by machines they seem to have only one gender. Consequently, Strax is shown to have little understanding of (human) gender.
The Sontarans were a humanoid race of belligerent and militaristic clones from the planet Sontar, created by the Kaveetch. They waged an eternal war throughout Mutter's Spiral against the Rutans, though they made no effort to change this nor did they want peace.
It is revealed that when the Doctor whispered to Martha in the previous episode, he said: "Use the countdown." Docherty's betrayal was planned — engineered by Martha so that she would be brought on board the Valiant to rejoin the Doctor.
Born into war The Time Lords placed Davros's life up to his apparent death at the hands of the Daleks as concurrent to Earth's ancient history, prior to the 2nd century.
The point is that the Doctor says he is the last of the Time Lords simply because before "the year that never was" the Master was meant to be dead and after that the Master was meant to be killed.
Human Nature was the eighth episode of series 3 of Doctor Who. It introduced the Chameleon arch and its ability to change Time Lord DNA, making the Doctor human. The episode was based on a novel of the same name and was a two-parter.
He fooled the Family by pretending to still be John Smith and using an olfactory misdirection to trick them into thinking that he was still human.
This led to the Doctor living life as an ordinary schoolteacher named John Smith in 1913, believing himself to be human and believing his TARDIS' created memories to be real.