Blood
Blood was an essential fluid of many life forms, Gallifreyans and humans included.
Human blood, which was red, was divided into two types of blood cells, red and white, with red containing iron. (TV: Bad Wolf [+]Loading...["Bad Wolf (TV story)"]) Gwen Cooper associated blood with a sour metallic smell. (PROSE: Slow Decay [+]Loading...["Slow Decay (novel)"])
Some people, like Chief Steward Weeks, didn't enjoy the sight of blood. (AUDIO: Storm Warning [+]Loading...["Storm Warning (audio story)"])
Sleep dust contained, among other things, blood cells. (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"])
The blood of the gods of Greek mythology was known as ichor and had special properties. (HOMEVID: Ichor [+]Loading...["Ichor (home video)"])
Significance
Food and drink
Some organisms consumed blood in order to survive, namely vampires, (TV: State of Decay [+]Loading...["State of Decay (TV story)"]) Haemovores (TV: The Curse of Fenric [+]Loading...["The Curse of Fenric (TV story)"]) and Plasmavores. (TV: Smith and Jones [+]Loading...["Smith and Jones (TV story)"])
The Three Who Rule would only drink the blood of the living. However, they killed villagers and used tubing to store their blood in the fuel tanks of the Hydrax. This was then fed to the King Vampire. (TV: State of Decay [+]Loading...["State of Decay (TV story)"])
On their home planet, the Ogri subsisted on amino acids, but found that the blood of Earth life forms, including humans, would also suffice. This led to human sacrifices at Stonehenge. (TV: The Stones of Blood [+]Loading...["The Stones of Blood (TV story)"])
Other species, such as Vortisaurs (AUDIO: Storm Warning [+]Loading...["Storm Warning (audio story)"]) and Androgums, (TV: The Two Doctors [+]Loading...["The Two Doctors (TV story)"]) did not subsist off of blood exclusively, but would consume it as part of a more varied diet. While stranded in four-dimensional space, the Eighth Doctor claimed that Vortisaurs could smell the space-time in his Time Lord blood. (AUDIO: Storm Warning [+]Loading...["Storm Warning (audio story)"])
As Vastra herself implied, she would drink human blood as a refreshment, calling it "the colour of red wine". (TV: The Snowmen [+]Loading...["The Snowmen (TV story)"])
Black pudding contained pig's blood; it was consumed by humans as part of a full English breakfast. (PROSE: Slow Decay [+]Loading...["Slow Decay (novel)"])
At least one Osiran, Sekhmet, enjoyed feasting on blood. (AUDIO: The Bride of Peladon [+]Loading...["The Bride of Peladon (audio story)"])
Practical use
The magic potion Lady Peinforte made to travel in time required human blood. (TV: Silver Nemesis [+]Loading...["Silver Nemesis (TV story)"])
Some species, including the Sycorax, used a form of hypnosis known as blood control. (TV: The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"])
Blood could be transferred to another by the process of blood transfusion. During the Great War, Dr. Sturgis was experimenting with it and threatened the life of the Eighth Doctor by attempting to transfuse blood into his veins. (AUDIO: The Great War [+]Loading...["The Great War (audio story)"]) On another occasion, the same incarnation gave blood to his fourth incarnation via this process. (PROSE: The Eight Doctors [+]Loading...["The Eight Doctors (novel)"]) In incompatible biologies however, a blood transfusion could be dangerous, even fatal. When a sample of human blood was introduced into the systems of several Ashtallans, the otherwise immortal beings began to die. (AUDIO: The Invention of Death [+]Loading...["The Invention of Death (audio story)"])
Mortimus used the blood of five species whose destinies the Time Lords had affected in a ritual to summon Artemis, the Chronovore. (PROSE: No Future [+]Loading...["No Future (novel)"])
Blood also formed an important part of some Faction Paradox rituals. Sometimes biodata would be extracted from the blood of a being to use in a Faction Rite or Ritual. (PROSE: Alien Bodies [+]Loading...["Alien Bodies (novel)"])
Judoon scanners checked blood to gather information on the unit's species. (TV: Smith and Jones [+]Loading...["Smith and Jones (TV story)"])
In 2011, Jack Harkness's immortal blood was used by the Three Families to cause Miracle Day, by inserting it into both ends of the Blessing simultaneously. Later that year, the Miracle was stopped when Jack, now mortal because of Miracle Day, inserted his blood into one end of the Blessing at Shanghai, while Rex Matheson, who had a transfusion of Jack's mortal blood, inserted it into the other end in Buenos Aires. (TV: The Blood Line [+]Loading...["The Blood Line (TV story)"])
As a failsafe, Sekhmet's trisilicate prison was blood locked. The lock required the blood of four royal women to properly release Sekhmet. (AUDIO: The Bride of Peladon [+]Loading...["The Bride of Peladon (audio story)"])
When trapped in 1941 and trying to send a message to her 21st century Torchwood Three team, Toshiko Sato cut her hand with a sharp edge of a can, and wrote on paper with her blood. (TV: Captain Jack Harkness [+]Loading...["Captain Jack Harkness (TV story)"])
The Twelfth Doctor had a gizmo able to take a sample and examine a specimen of human blood. He administered such a test on Alan-a-Dale, a human from the 12th century, and made a prognosis of several diseases and about six months of life expectancy. (TV: Robot of Sherwood [+]Loading...["Robot of Sherwood (TV story)"])
Blood types
- Main article: Blood type
On at least Earth (TV: The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"]) and Gallifrey, (PROSE: A Big Hand for the Doctor [+]Loading...["A Big Hand for the Doctor (short story)"]) blood was organised into different types.
Colour
There were many variations in blood colour.
Human, (TV: Smith and Jones [+]Loading...["Smith and Jones (TV story)"]) Time Lord (TV: Death to the Daleks [+]Loading...["Death to the Daleks (TV story)"], The Two Doctors [+]Loading...["The Two Doctors (TV story)"], Heaven Sent [+]Loading...["Heaven Sent (TV story)"], Extremis [+]Loading...["Extremis (TV story)"], The Timeless Children [+]Loading...["The Timeless Children (TV story)"]) and Raxacoricofallapatorian (PROSE: The Monsters Inside [+]Loading...["The Monsters Inside (novel)"]) blood was red. Time Lord blood was a darker shade of red than human. (TV: The Two Doctors [+]Loading...["The Two Doctors (TV story)"], The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"], Extremis [+]Loading...["Extremis (TV story)"])
The 456 also had red blood. (TV: Children of Earth: Day Five [+]Loading...["Children of Earth: Day Five (TV story)"])
The Ood had purple blood, (TV: Planet of the Ood [+]Loading...["Planet of the Ood (TV story)"]) as did the Venusians. (PROSE: Venusian Lullaby [+]Loading...["Venusian Lullaby (novel)"])
One pilot's species had pale blue blood. (PROSE: Joyride [+]Loading...["Joyride (novel)"])
Foamasi, (TV: The Leisure Hive [+]Loading...["The Leisure Hive (TV story)"]) Ice Warriors, (AUDIO: The Prisoner of Peladon [+]Loading...["The Prisoner of Peladon (audio story)"]) Meeps, (COMIC: Doctor Who and the Star Beast [+]Loading...["Doctor Who and the Star Beast (comic story)"]) and all life forms from Skaro including Kaleds (AUDIO: The Juggernauts) and Dalek mutants (TV: Revelation of the Daleks [+]Loading...["Revelation of the Daleks (TV story)"]) own green blood.
Sontaran blood was mostly green, (TV: The Two Doctors [+]Loading...["The Two Doctors (TV story)"], The Last Sontaran [+]Loading...["The Last Sontaran (TV story)"]) although according to one account it was red. (HOMEVID: Battlefield [+]Loading...["Battlefield (home video)"])
The Waro had yellow-green blood. (PROSE: The Devil Goblins from Neptune [+]Loading...["The Devil Goblins from Neptune (novel)"])
Mayflies, Judoon and Krafayis had yellow blood. (TV: Reset [+]Loading...["Reset (TV story)"], Prisoner of the Judoon [+]Loading...["Prisoner of the Judoon (TV story)"], PROSE: Blind Fury [+]Loading...["Blind Fury (short story)"])
Nostrovites had black blood. (TV: Something Borrowed [+]Loading...["Something Borrowed (TV story)"])
Silent blood was white. (TV: Day of the Moon [+]Loading...["Day of the Moon (TV story)"])
The Bane had white creamy blood; (TV: Enemy of the Bane [+]Loading...["Enemy of the Bane (TV story)"]) although on one occasion, one left black slime from its wound. (TV: Invasion of the Bane [+]Loading...["Invasion of the Bane (TV story)"])
Other references
Other substances necessary to the existence and activity of living beings were sometimes compared to blood: static electricity, vital to the life of Dalek creatures and to the functioning of their casing, was described by the Second Doctor as "like blood" to the Daleks, (TV: The Power of the Daleks [+]Loading...["The Power of the Daleks (TV story)"]) and Dalek Sec theatrically referred to the genetic fluid flowing into vacated human bodies to create the Dalek-Humans as "the life-blood". (TV: Evolution of the Daleks [+]Loading...["Evolution of the Daleks (TV story)"])
In early 2005, A. Fergus was doing a report on the fifth birthday of the London Eye for 60 Seconds on BBC3, when the Ninth Doctor, with blood on his face, told Fergus and his crew to run, and despite them being hardened professionals, they ran like children, not stopping to ask questions. Fergus later wrote about his encounter on whoisdoctorwho.co.uk. (PROSE: Have You Seen This Man? [+]Loading...["Have You Seen This Man? (short story)"])