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| {{Status|Canon}} | | {{ratings}} |
| {{Wikipedia}}
| | == Biological Use == |
| [[File:1214717326 BloodBag large.jpg|75px|right]]
| | Blood is used to transport nutrients through the body of a multicellular organism. In the case of [[human|humans]], it uses a compound called hemoglobin to transport [[oxygen]] to the cells. Because of cellular respiration, every single cell in the human body needs oxygen, so blood must deliver oxygen to every cell in the body. This is most likely true all of the other [[Covenant]] races, though their blood may be delivering a different compound to the body. |
| {{Quote|Oh. My. God. You're covered in...|[[Janissary James]]}}
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| '''Blood''' is used to transport nutrients through the body of a multicellular organism. In the case of [[human]]s, it uses a compound called hemoglobin to transport [[oxygen]] to the cells. Because of cellular respiration, every single cell in the human body needs oxygen, so blood must deliver oxygen to every cell in the body. This is most likely true all of the other [[Covenant Empire|Covenant]] races, though their blood may be delivering a different compound to the body, resulting in its difference in color to human blood.
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| ==Overview== | | ==In the Halo Series== |
| Humans will bleed red blood when shot. [[Forerunner]] artifacts, such as the [[Menachite portal complex]], may at times be manipulated by human blood.<ref>'''[[Halo: First Strike]]''', ''page 141'' (''"Fred felt a hot pain in the tip of his finger. He drew his bare hand away and a tiny track of blood smeared the rock. The glittering symbols on the wall took on a greasy cast"'')</ref> The [[Flood]] will always bleed a pasty, brownish-green color, and the explosion of a [[Flood carrier form|carrier form]] or a [[Pod infector]] will leave a brown stain on the ground. In gameplay, however, Pod infectors do not "bleed", but rather explode into bits of flesh.
| | When shot without the protection of a shield, the target will "bleed." In some races, the blood will visibly come out of the target, and leave a stain on the ground. The viscosity and color of the blood varies by race. |
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| When shot without the protection of an [[energy shielding|energy shield]], the target will "bleed." In some races, the blood will visibly come out of the target, and leave a stain on the ground. The viscosity and color of the blood varies by race.
| | ===Covenant Species=== |
| | *[[Sangheili]] - Dark Blue ([[Halo: Combat Evolved|Halo: CE]])<ref>[http://halo.wikia.com/wiki/Image:Bloody.jpg Bloody.jpg] (Corpse was meleed multiple times.)</ref>, Purple (Halo 2 and Halo 3). |
| | *[[Jiralhanae]] - Black ([[Halo 2]]), Red ([[Halo 3]]). |
| | *[[Mgalekgolo]] - Orange. |
| | *[[Kig-yar]] - Purple. |
| | *[[Unggoy]] - Light Blue. |
| | *[[Yanme'e]] - White. |
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| Blood and bleeding hold a special significance in Sangheili culture. Having one's blood spilled outside the battlefield is considered dishonorable; for this reason, doctors are not held in a high regard.<ref>'''[[Halo: The Cole Protocol]]''', ''page 143''</ref> Blood is also a repeated motif in Sangheili maxims or proverbs.<ref>'''[[Halo 2]]''', campaign level ''[[The Arbiter]]'' ("On the blood of our fathers, on the blood of our sons... We swore to uphold the Covenant!")</ref><ref>'''[[Halo: Ghosts of Onyx]]''', ''page 278'' ("Our blood will forge a thousand generations.")</ref> Due to its cultural significance, "blood" is also a Sangheili curse word.<ref>'''[[Halo: The Cole Protocol]]''', ''page 140''</ref>
| | ===Others=== |
| | | As in reality, humans will bleed red blood when shot. The [[Flood]] will always bleed a brown color, and the explosion of a [[Carrier Form]] or an [[Infection Form]] will leave a brown stain on the ground. Regardless of the host organism, flood combatants will always bleed a brown colored blood. |
| ===Blood colors=== | |
| *[[Human]] - Red
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| *[[Sangheili]] - Dark blue/purple (''[[Halo: Combat Evolved]]'')<ref>[[:File:HCE Elite Blood.jpg|Sangheili corpse that was meleed multiple times]]</ref>, purple (''[[Halo 2]]'' and ''[[Halo 3]]'')
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| *[[Jiralhanae]] - Dark navy blue/black (''Halo 2''), purplish red, thick (''Halo 3''), red (''[[Halo: Reach]]'')
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| *[[Mgalekgolo]] - Bright orange
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| *[[San'Shyuum]] - Red
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| *[[Kig-Yar]] - Dark blue/purple (''[[Halo: Combat Evolved]]''), purple (''[[Halo 2]]'' and ''[[Halo 3]]'')
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| *[[Unggoy]] - Light blue, teal, very thick<ref>[[:File:GruntBlood.jpg|A Grunt getting shot]]</ref>
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| *[[Yanme'e]] - White, with slight green tint
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| *[[Huragok]] - Reddish pink,<ref>'''[[Halo Graphic Novel]]''', ''page 18''</ref> blue purple<ref>'''[[Halo 3: ODST]]'''</ref>
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| *[[Flood]] - Brownish-green
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| *[[Forerunner]] - Purple<ref>'''[[Halo: Silentium]]''', ''page 145''</ref>
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| *[[Yonhet]] - Red<ref>'''[[Halo: Nightfall]]''', ''Episode One''</ref>
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| *[[Sharquoi]] - Purple<ref>'''[[Halo: Envoy]]''', ''page 244''</ref>
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| ==Blood type==
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| {{Quote|Hang two units, O-neg, and he needs an airway.|A UNSC Marine Corps medic during the [[Battle of Mombasa]].}}
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| A blood type is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells. The blood type is often included on identification patches or on tattoos worn by military personnel, in case they should need an emergency blood transfusion; certain variants of [[MJOLNIR Powered Assault Armor|MJOLNIR]] and [[ODST armor|ODST]] armors, for example, are equipped with MEDREF labels displaying the blood type of the wearer. Individuals with known blood types include:
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| *[[Kurt Ambrose]]: O+
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| *[[Michael Crespo]]: A-
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| *[[Jorge-052]]: B+
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| *[[John-117]]: O+
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| *[[Edward Buck]]: O-
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| *[[Samantha Wisner]]: O-
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| *[[Taylor Miles]]: B+
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| *[[T. Rymann]] O+
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| *[[Kojo Agu]]: AB-
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| *[[Jonathan Doherty]]: O+
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| *[[Talitha Macer]]: AB+
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| *[[Randall Aiken]]: AB-
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| *[[Carris-137]]: A+
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| *[[Caleb Aagard]]: B-
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| *[[Alo Sebukah]]: E+
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| ==Trivia==
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| *Sometimes in ''[[Halo: Combat Evolved]]'' bullet holes with blood and/or blood splatters will be visible at certain angles though nothing was there or nothing was shot or hurt.
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| *In ''Halo: Combat Evolved'', when the player repeatedly melee [[Covenant]] species (most effectively on [[Kig-Yar|Jackals]]), an unlimited amount of blood will come out.
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| *Sometimes in ''Halo: Combat Evolved'' on the Xbox, the game will lag if too many blood decals are being rendered.
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| *The blood and the amount of blood of Covenant foes changes during the course of the three Halo games. For example, Grunts, Elites, Hunters and Jackals bled profoundly when meleed in ''Halo: Combat Evolved'', and yet, in ''Halo 2'', the player must shoot the corpse in order for it to bleed. In ''Halo 3'', the amount of blood is lessened dramatically, but is given in greater detail. Grunt blood also seems more viscous, as opposed to slightly watery looking in the earlier games.
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| *In ''Halo 3'', when a Brute is shot and blood is spilled, there seems to be odd luminous chunks in the blood. This can also be seen in human blood as well.
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| *The Brutes are the only race to have significantly different colored blood from one game to another, although in some ''[[Halo Legends]]'' episodes, other species also have different blood color than the games.
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| *As a unique feature among [[Forerunner]] machines (such as [[sentinel]]s or [[monitor]]s), the [[Promethean]] constructs "bleed" an orange fluid when damaged or destroyed.
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| *In ''Halo 5'', Grunts bleed more profusely than other alien species or humans. After death, their corpses can also be shot to cause more luminescent blue bleeding.
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| ==Gallery==
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| <gallery>
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| File:H3 Brute Blood.jpg|A Brute's blood after being killed by a grenade.
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| File:Jackalblood.jpeg|A [[Kig-Yar|Jackal]]'s blood stain in ''Halo: Combat Evolved''.
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| File:H3 Jackal Blood.jpg|A Jackal's blood stain in ''Halo 3''.
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| File:H3 Hunter blood.jpg|A Hunter's blood after it was killed by an explosive.
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| File:Hunter_blood.jpg|Mgalekgolo Blood. Note the luminous properties
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| File:H3 Dead drone.jpg|A Drone's blood stain.
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| File:GruntBlood.jpg|A Grunt's blood
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| File:HCE Elite Blood.jpg|When concentrated, an Elite's blood is actually a dark blue.
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| File:Huragok blood.jpg|An Engineer's blood.
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| File:SkirmisherBleeding.jpg|A Skirmisher's blood after being shot.
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| File:HTRmc-Conviction-Corpse.jpg|A San'Shyuum's blood.
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| File:lastson.png|The blood of [[Resa 'Azavayl]] after being killed.
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| </gallery>
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
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| [[Category:Biology]]
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