Wolverine has long been one of the Marvel Universe's most popular characters since his time with the X-Men started way back in Len Wein and Dave Cockrum's Giant-Size X-Men #1 story "Deadly Genisis." Back in 2001 when Marvel introduced the Ultimate Marvel Universe they also introduced a new Wolverine in Mark Millar and Adam Kubert's Ultimate X-Men #1.

The Ultimate Wolverine, like his 616 counterparts, became a fan favorite. However, when Magneto attacks the world in the "Ultimatum" event, Ultimate Wolverine mortally wounds him by stabbing him in the chest but is killed by Magneto who rips the adamantium from his skeleton in Jeph Loeb and David Finch's Ultimatum #4. While Ultimate Wolverine would not return, his death paved the way for the introduction of his son, James Hudson Jr.

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Jimmy Hudson's claws emerge for the first time.

Jimmy Hudson is the biological son of Wolverine and Magda Lensherr, though he was adopted and raised by James Hudson. Wolverine fought with James Hudson in the Iraq War and trusted him enough to take care of his son when he was born. Jimmy grew up unaware of his mutant lineage, though he constantly felt like an outsider. Jimmy's latent abilities manifested when he was drag racing and flipped his car causing it to explode. After the explosion, Jimmy was still alive and injured, but began rapidly healing.

The next day Kitty Pryde arrived with a box of Logan's things. Upon opening the box, Jimmy was greeted with a holographic message telling him that he was Logan's son and to "forget asking who his birth mother was, not to think about the past and focus on the future, respect the Hudsons for raising him, and learn to live with the choices he had made," with his final message being that he never regretted having Jimmy as a son. Jimmy and Kitty learned that he had inherited Wolverine's powers, along with the ability to form an adamantium coating around his claws. Jimmy then recruited Jean Grey and other mutants to form the "Tomorrow People," a Plan B in case the X-Men had fallen, with Nick Fury joining as their Shadow Intelligence.

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Jimmy eventually left the team and went on a search through his father's past. Jimmy was eventually captured by Weapon X's William Stryker. He would later escape along with other captured mutants with the help of the X-Men, which lead him to join the team. Jimmy stayed with the X-Men until the final incursion, where he and a group of mutants fell into Earth-616. Jimmy is revealed to be alive in Cullen Bunn, Julian Lopez, and Cory Smith's X-Men: Blue #5, where he is tracked down in the Canadian wilderness by the time-displaced original X-Men, who he attacked believing they were working for Mr. Sinister. After fending off an attack by Sinister's new team of Marauders, the X-Men offer him a place on the team.

Jimmy would remain a part of the team throughout the series aiding them in various missions, such as an adventure in outer space that saw him bonded with the Poison symbiote. Poison, believing it was the last of its species, began traveling the world using Jimmy's body. The symbiote and Jimmy's consciousness began battling for control but agreed to work together when Magneto sent Daken to kill them. Daken was stopped by Jean Grey and the Blue team who let Jimmy and Poison leave to solve their identity crisis. Jimmy hasn't been seen since then, which is odd considering how inclusive Krakoa has been.

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