Origin

After a sea turtle chokes on a plastic bag from a Las Vegas grocery store, it washes up on the shores of Krakoa, getting Nature Girl’s attention. Angry, she uses a gate to get to Vegas and confront the manager of the grocery store, who she ends up killing. She partners with Saoirse the police dog, who was originally sent after her, and goes on the run having broken the second law of Krakoa (murder no man). She considered Saoirse's positive judgment of her as permission to continue attacking humans for their polluting ways. Joined by fellow mutant, Curse, and X-Men villain, Sauron, they traveled America righting crimes against nature.

Wolverine finally tracked her down while her team was attacking an oil refinery. He brought them back to Krakoa to stand trial. Nature Girl was not shy about pleading guilty, and she and Curse were imprisoned in the depths of Krakoa. However, Krakoa disagreed with The Quiet Council’s decision. Krakoa conspired with Cypher and Pyro to get X-Men Green off the island and gave Nature Girl a special staff to help her in avenging the Earth.

Creation

Nature Girl officially assembles the team in X-Men Unlimited Infinity Comic #7 by Gerry Duggan and Emilio Laiso. The naming scheme is based on the classic X-Men structure of having a "Blue" and "Gold" team, substituting the color "Green," usually saved specifically for environmental action.

Major Story Arcs

Eco-Tour

X-Men Green took to the seas to confront an orca poaching operation, but this got them the attention of Namor the Submariner. Although he commended their intentions, he could not approve of their methods. Instead of fighting them, he pointed them to a different arena, the savanna of Africa. This simply got them in trouble with Black Panther. While he had them in custody, the African animals gifted their rage to empower Nature Girl, who went rabid and attacked the poachers. They escaped when Curse used his luck powers to conjure a Krakoan gate, however, they were unable to reach Saoirse, who remained in Wakandan custody.

The team ended up in the headquarters of Hordeculture. Hordeculture’s experiments into Krakoan plant tech allowed them to track the Krakoan Cudgel that Nature Girl had lost in her confrontation with Namor. They reunited Nature Girl with her lost weapon, unlocking her mutant power further, transforming her into a more feral appearance. She also learned the cudgel could open Krakoan Gates. With her new look and powers, Nature Girl leads her team against every oil drilling platform in the ocean.

This time they live streamed their violence, which got the attention of the X-Men.

Cursed

After publicizing their latest attacks, X-Men Green forced the nation of Krakoa's hands. They sent a new specialized team of Marauders to save the oil platform and employees, leaving the area in better shape than even before the oil platform was built. Nature Girl was pleased with this ruse, but knowing that Krakoa is out on their trail now, she believes they need to bolster their ranks. The ladies of Hordeculture suggest recruiting The Armageddon Man, a mutant Hordeculture has wanted to recruit for their own purposes. Hordeculture was slyly manipulating X-Men Green into doing their dirty work, but Nature Girl knew, hoping she could manipulate them back.

Unfortunately, Nature Girl turned on Sauron when he burned a number of apes to death. Sauron was fighting for dinosaurs exclusively and cared little for the entire natural kingdom like Nature Girl did. She started fighting him to the death, but Curse intervened. She was so upset that she was losing his new team that she revealed her secret to Nature Girl. Her wish fulfillment powers would cause her pain if she wished for good things for other people, so she usually only wished for bad things. When she saw Nature Girl helping the turtle on the beach, she wished for a new friend, dragging Nature Girl to her level, thus explaining Nature Girl's new radical behavior. Nature Girl denied it all, so Curse wished she never wished for a friend, a wish so good it killed her.

Genus Compound

Nature Girl blamed Hordeculture for Sauron's betrayal and Curse's death. They manipulated her to retrieving Armageddon Man, where everything went wrong. Armageddon Man was on Nature Girl's side though. Together, they recruit Gwen Warren, another mutant who never fit in thanks to her animal-based powers, and made a move on Hordeculture.

Unfortunately, Hordeculture was ready for them. They scanned Armageddon Man as he entered and were able to copy his powers. Once properly duplicated, they used his powers to destroy their headquarters and used their Genus Compound to devolve Armageddon Man into a primate ancestor. This forced Nature Girl to open a portal to Santo Marco so they could lie low. However, Nature Girl also grabbed a sample of the Genus Compound and intended to use it until there was no human or mutant left.

Despite her team's growing reluctance, Nature Girl chose Niagara Falls for their first genus target. Gwen finally had enough though. She sabotaged Nature Girl's plans by not wearing her psi-blocker and allowing Jean Grey and the X-Men to track their location. This angered Nature Girl so much that she evolved into Armageddon Girl and killed Armageddon Man with her ever-strengthening elemental abilities. Although the X-Men seem overmatched, they were pledged to resurrect Armageddon Man, accept Spider-Girl, cure the Genus Compound (thanks to Forge), and banish Nature Girl to a magical realm of darkness. However, before Lin could be banished, she vanished.