Abnormal

An was an uncommon type of Pure Titan which could possess unusual intelligence or perform unpredictable actions.
== Description ==
Unlike the typical Titan that attacked and devoured humans on sight, abnormal Titans might choose to ignore single or isolated humans, and exhibited unpredictable behavior that could lead to greater damage as they disrupted important strategic locations. Some of these uncommon behaviors were speed-walking, running, performing great jumps, directly killing their victims before eating, and even speaking human languages. Abnormal Titans, like its Pure counterparts, resembled nude humans. They were bipedal though a few were quadrupedal, with the limbs and features one would expect in humans; however, they were all variously deformed to some extent in body proportions (enlarged head, small limbs, etc.). The vast majority of Titans had exceptionally wide mouths with an array of entirely sharp (in certain instances), or entirely flat teeth (which was more common in most observed titans). Abnormal's had a masculine body type lacking all reproductive organs and in some specific cases resembled the Colossus Titan.
== Story ==
=== History ===
The earliest known Abnormal's were the Wall Titan's that were created by the 145th King Karl Fritz in year 743, they were commanded into hardening into three concentric Walls outside of Paradis Island.
=== Prologue arc ===
During the Fall of Wall Maria, An abnormal Smiling Titan breaches through the Walls and headed straight for the Yeager family's house. It was spotted by Eren Yeager and Mikasa Ackerman who attempted to rescue his mother stuck underneath the rubble, Hannes initially attempts to kill the Titan before hes struck by fear, opting to take Eren and Mikasa to safety, leaving Eren's mother behind. Afterward, Eren witnesses the Titan pull his mother out of the debris, as it proceeds to crush her and devour her shortly thereafter.
=== Ilse's Notebook ===
During an expedition outside the Walls, Hange Zoë among other members of Levi's squad find a lost diary on the ground that belonged to Ilse Langnar before her death. The diary explains that after Ilse's entire flank was massacred, she fled to a nearby forest, heading north. After profuse running, she inadvertently runs into a Titan and writes in the diary, believing it to be her end. She remarks that instead of immediately eating her, it hesitates. It then addresses her, saying "a subject of Ymir" and "Lady Ymir," greeting her with deep respect, and bows. She is thoroughly confused that the Titan can form speech, and writes in her diary that she has attempted communication. She first questions it about what the Titans are, and building up blind sadness, fear and rage, she angrily yells at it asking why Titans eat humans and what their objective is. The Titan appears more and more frustrated as it moans and tears at its cheeks, ripping off flesh and spraying blood. Ilse attempts to flee, but is caught by the Titan, who crushes her skull in its teeth while seemingly crying.
=== Battle of Trost District arc ===
As Eren Yeager's group was heading towards the middle guard in the Trost District, an abnormal Titan jumped out of nowhere and grabbed Thomas Wagner in its mouth. The rest of the group looked on, horrified, as the Titan swallowed him whole. The same Titan would later appear, where it would be killed by Eren in his Titan form.
Another abnormal Titan appeared and charged straight towards the rear exit of Trost, where a group of citizens were gathered and trying to escape. It ran so fast that the elite guards stationed in that area could not keep up with it. Mikasa Ackerman appeared and sliced the nape of its neck to kill it, dulling her blades in the process.
=== The Female Titan arc ===
The Survey Corps went on its expedition outside Wall Rose and on the way, an abnormal suddenly appeared towards the right flank. It completely ignored the soldiers at the outer guard and charged straight towards the center of the formation. Armin Arlert watched as Luke Siss and Dita Ness attempted to kill it, cutting the tendons of its foot and making it fall, and successfully killing it.
There is also an abnormal Titan which walks and runs on it is hands and feet and is capable of running at very high speeds. Its limbs are deformed giving it a spider-like gait and it is subdued by a captain leading it into a tree, knocking it unconscious. 
When Annie Leonhart attempted to escape the Survey Corps by climbing the Walls, she damages part of the Wall, and a huge chunk is torn off, revealing the face of the Wall Titan.
=== Clash of the Titans arc ===
Connie Springer encounters his mother's Titan form in Ragako village. Its arms and legs were shrunken and paralyzed, and it said: "welcome home". It is later revealed that the Beast Titan is directly responsible for the humans-turned-Titans in the village.
When Mike Zacharias first encountered the Beast Titan, he believed it to be an abnormal Titan due to the mass amount of fur on its body.
After Eren and Ymir were kidnapped by Reiner and Bertolt, they stopped in the Titan Forest between Wall Rose and Wall Maria. As they were resting atop the branches, an abnormal Titan was casually lying beneath them and appeared to be watching their every movement.
Eren and Mikasa encounter the Smiling Titan after 5 years and witness it kill Hannes, before the same can be done to them Eren knowingly uses the Coordinate gaining control over the surrounding Titans. The ones that are under his control proceed to kill the Smiling Titan by ripping it to shreds and devouring it.
=== Royal Government arc ===
After drinking the serum that turns a person into a Titan, Rod Reiss turned into a gargantuan Titan twice as big as the Colossus Titan. He was so big that he could only crawl and his body generated enough heat to burn nearby trees.
This Titan turned out to be an abnormal Titan and it headed to the Orvud District, the nearest and most populated area, attracted by the amount of people in the city. It completely ignored the concentrated cannon fire against it and just kept going towards the city. It was later slain by Historia Reiss.
=== War for Paradis arc ===
During the Surprise attack on Paradis Eren and Zeke gain full power of the Founding Titan and undoes all the hardening on the Walls initating the Rumbling. After releasing the Wall Titans Eren declares to all the Subjects of Ymir he will annihilate all life outside of Paradis Island. In the following days, Connie returns to his mother's Titan in Ragako village attempting to feed A jaw Titan inheritor to it, before he is stopped by Armin. During the Battle of Heaven and Earth, Eren and the Wall Titans have slaughtered 80% of humanity before his Titan's are forced to a halt after Zeke is willingly killed by Levi, severing Eren's control over them. After Eren himself is killed by Mikasa, the power of the titans ceases to be and all Titan types including Abnormal's are erased from existence, by proxy Connie's mother is reverted back to a human.
== Trivia ==
* The Nine Titans were considered to be abnormal Titans, but were classified differently.
* Abnormals could vary in many ways from normal Titans. This included intelligence, such as that of the Talking Titan, to immense sizes such as that of Rod Reiss's Titan, which stood at twice the height of the Colossus Titan, as well as the Wall Titans that were nearly as tall as the Colossus.
* There is no given reason nor explanation as to why or how Abnormal's were formed, there appears to be no known correlation between any Abnormals in either Titan or human form that could explain their ability to remember certain skills or functions. 
* It is possible that Abnormal's remembered how to perform certain functions as seen with the "Talking Titan" and Connie's mother, as both were Abnormals capable of thought and speech, the correlation being that both Titans revealed this ability upon seeing someone important to them, with Connie's mother seeing him and welcoming him back home and the "Talking Titan" confusing Ilse Langnar for Ymir and proceeding to worship her before killing her after she attempted to flee.
== References ==
== Navigation ==
fr:Titan Déviant
it:Gigante Anomalo
ru:Аномальный титан