|Angel needs your help!|
|“||Had enough of life?||”|
–Ari, The Angel ExperimentAri was the only son of Jeb Batchelder—one of the top scientists at the School—and the half-brother of Maximum Ride. He was also the leader of the Erasers.
Early HistoryUnlike the other hybrids, Ari spent his early life as a non-mutant human. When he was three years old, Jeb disappeared along with the Flock, leaving Ari at the tender mercies of the School's genetic scientists. The geneticists used Ari as an experiment, splicing his DNA with that of a wolf in order to create a new breed of Eraser that could live longer than the previous versions (those whose DNA had been spliced in the womb). But Ari didn't turn out as well as the scientists had hoped.
The Angel Experiment
While Max and the Flock were out picking strawberries at their mountain home, a pack of Erasers dropped out of the sky. During the fight, Max was pinned down by two of them; as she tried to get back up, she was slammed back down to the ground by another one of the Erasers. This Eraser, smiling horribly as he spoke, knew Max, though Max didn't recognize him.
School's Out - Forever
Ari, despite having been killed in the previous book, came back to life after the School fused the bones in his neck; he also got wings retrofitted onto him by the whitecoats (though it is later said that his wings didn't work right and that using them was painful).
Saving the World and Other Extreme Sports
Ari joined up with Max's half of the Flock.
While the other Erasers were "retired" (killed), the whitecoats allowed Ari to continue to live, as his expiration date had recently appeared on the back of his neck, indicating that he'd die on his own anyways. After learning that his death was approaching, Ari became extremely depressed and lost his hatred of Max and the Flock.
When the Flock was held captive in the School, he showed Max some of the experiments and told her of the whitecoats' plans for Re-Evolution, saying that even though he knew he would die soon, he hoped that the Flock could still escape and stop it.
He helped Angel find Total (who the whitecoats took from the Flock) and broke open a cage Nudge was trapped in, though in the process, he cut open and maimed the inside of his mouth. Realizing that the whitecoats would probably kill him for helping them escape, Max asked Ari to join them, much to the displeasure of the rest of the Flock (except Angel). Ari was very grateful that Max would take him in, and he promised to keep her safe. He joined Max's "mini-flock" when the Flock split and went with her, Angel, Nudge, and Total to Europe. During this time, Max noted that he didn't talk much, as if he didn't think he had a right to an opinion.
It was revealed that, because Jeb was Max's father, Ari was her half-brother.
Ari tried to back up Max during her tests against Omega; and later, when a mutant riot breaks out, he used his strength to literally "toss smaller mutants into the mosh pit of death". In the midst of the fight, he suddenly collapsed. Max tried to find where he was hurt, but he wasn't injured. His expiration date arrived soon after and he died in her arms.
The Final Warning
At the beginning of the book, the Flock and Jeb hold a makeshift funeral for Ari. Each of the members dropped dirt onto the casket and said a few words. Most of the Flock—primarily Max, Nudge, Total, and Angel—broke down and cried.
Mr. Chu built an M-Geek copy of Ari to intimidate Max and the Flock, though Gazzy and Iggy destroyed it with an explosive. Upon closer inspection, Max claimed that it although it was very similar to Ari, it wasn't an exact replica.
In Nevermore, Ari was cloned perfectly—retaining all of his memories—and killed Maya; however, he was killed by Dylan when he attempted to kill Fang. This was the last time Ari was seen in the series.
Despite his young age, Ari was the size of a full-grown human because of the genetic engineering performed on him by the School. He was always in a partially morphed state; not quite human and not quite wolf, he was the most "wolf-like" of all the Erasers.
In the first book, Ari's traits were quite adult-like, while in the second book, his feelings and thoughts were often like those of his seven-year-old self. This was best shown when he went to Best Mart in the second book, where he stole a Game Boy and was also disgusted by a woman holding a bra in public.
Ari also exhibited slight masochistic tendencies, as illustrated when he bit himself several times in School's Out - Forever because the pain "felt better."
Maximum "Max" Ride