Eren survives during the Battle of the Trost because he keeps his powers and transforms fast enough to not be crystallized and regurgitated by the Titan. He keeps his powers because his spine was not damaged.
When Eren was eaten and swallowed by the Bearded Titan, he found himself in its stomach along with the bodies of its victims. His rage at the Titans caused him to burst out of the Bearded Titan's stomach by transforming himself into the mysterious Titan and going on a rampage against them.
Essentially, Eren makes contact with Zeke before he actually dies, is sent to the realm of the Paths, and returns with the full abilities of the Founding Titan - thus saving him from death and allowing him to trigger the Rumbling.
Titan shifting power is transmitted by the consumption of spinal fluid. The Titan failed to drink eren and thus never became one of the 9 Titans.
Soon after, Grisha arrives and finds Eren, who tells him that his mother was eaten. After hearing this, Grisha takes Eren into a nearby forest and instructs him to go to the basement; before Eren can react, Grisha injects him with a Titan serum, turning Eren into a mindless Titan.
Eren Yeager
The War Hammer Titan is the final Titan to make its presence known in the series, but its impression is still a really strong one. Its mastery of crystallization means that the War Hammer Titan can easily destroy its enemies with the crafty use of its powers.
If you remember Season 1 Episode 2, after the fall of Wall Maria, Eren wakes up with the vague memory that he'd met his father. His father had giving him a key, prepared an injection, and told him to look after Mikasa and Armin. That's also the scene where Eren ate his dad (he turned into a Titan from the injection).
No, the Eldians need to consume a Titan Shifter in order to become one. If Eren dies without being eaten, then the Titan Shifters die with him.
Because it is impossible for anyone to surpass the Founder, each person who gained the power of the Titans was fated with the "Curse of Ymir" (ユミルの呪い Yumiru no Noroi?), which limited their remaining lifespan to only 13 years after first acquiring it.
After these seventeen centuries, the Founding Titan was inherited by Karl Fritz, the 145th King.
Because of her grief over Eren's death, Mikasa rushes ahead of her comrades and quickly expends all of her gas, stranding herself in the middle of Trost. As two Titans close in on her, she contemplates giving up but is motivated to keep fighting by memories of Eren.
it's most likely that his entire body would transform. and his Titan form would look completely different judging by the other founding Titan users throughout the series his appearance would probably look similar to his attack Titan form with bones protruding from his body similar to Amir.
Why is Eren's Founding Titan a Skeleton? Eren's founding titan is a skeleton because it was the elongated spine that formed the basis of his form. While the bodies of most titans are covered by flesh, Eren's founding titan is quite unique.
As Armin tries to rescue Eren, the Bearded Titan closes its mouth, biting one of Eren's arms off in the process, and swallows Eren, much to Armin's hysterical horror. It is unknown how Armin survived the Bearded Titan and the others afterwards, but he was no longer attacked after the deaths of his friends.
Eren bites his hand to turn into a Titan. The trigger to becoming a Titan is bleeding and the emotion of being angry.
Not much is really known about Annie after her defeat, she has cried twice throughout the series (the second time is a spoiler) but from what evidence we can gather is that she saw that her mission was a failure and was saddened by it.
According to AOT's website, Eren Yeager is 19 years old in this final season. Mikasa Ackerman is also 19. An important thing that many AOT fans might already know is that the Ackermans meaning Levi and Mikasa are special, they do not undergo ageing like others do.
Over a thousand years ago, Ymir Fritz became the first Titan and the Founding Titan by obtaining the Power of the Titans. When she died, her split soul created the Nine Titans who razed the Marley nation to the ground.
The legend of the first Titan, Ymir Fritz, details how the Titans' founder lived for a mere 13 years, and thereafter, no Titan could surpass that limit. Grisha himself was said to be proof of these limitations, feeding himself to Eren after having been in possession of the Attack Titan for 13 years.
This indicates that perhaps the point of this titan was not to be inherently female, but has abilities centered on crystallization. Therefore, if a man were to eat the human wielding this titan, he would possibly retain his masculine features, but his defining characteristic would be to crystallize.
Once Eren and Armin's conversation is done in the Path, he erases Armin's memory of it, which Armin recovers in Chapter 139 after Eren dies. Eren's death and Ymir's liberation by Mikasa also results in every Titan body turning to dust, and those that had been transformed restored back to human form.
The soldiers tries to stop them, but the Female Titan is finally eaten alive, heavily surprising Erwin.
Eren sacrificed his mother for a better future for the world. Eren reveals to Armin that he had a crucial role to play in his mother's death during their final conversation in Chapter 139.
All Titans are subjects of the Founding Titan and can only be controlled by those who share the same bloodline as the creator, Ymir Fritz. As the world progressed and the bloodline was diluted, control of the Titans was passed between nations until eventually being used against each other.
Rod Reiss (ロッド・レイス Roddo Reisu?), often publicly referred to as Lord Reiss (レイス卿 Reisu Kyō?), was the true king of the Walls from 845 to 850. He sought to return the stolen Founding Titan to the Reiss family, by having his daughter Historia eat Eren Yeager.