Sitznski was given her superhuman abilities by the Roxxon corporation, giving her the codename Anaconda due to her powerful, adamantium-enhanced arms which she uses to constrain or crush her opponents.

She worked as a steelworker until executives at the Roxxon Oil Company selected her to become a special agent in covert operations.

Her entire skeletal structure was laced with artificial adamantium, giving her the ability to elongate her arms and legs, which she uses to constrict her enemies.

[4] Her first mission as part of the second Serpent Squad grouped her with three other snake-themed villains: Sidewinder, Black Mamba, and Death Adder.

They found the Serpent Crown, but the Thing and Triton retaliated, defeating Anaconda, Black Mamba and Death Adder by trapping them underwater.

[5] Anaconda freed herself and her teammates from their underwater captivity using her brute strength, and they were sent on another mission—this time, to search for a powerful weapon known as the Micro-Scanner.

Constrictor, annoyed with the whole idea of the Serpent Society, spied on Anaconda's group and called the Avengers hotline to tip them off.

The girls were easily taken out by Anaconda and her allies, but their kidnapping attempt was interrupted by an invitation to join Superia's all-female villain group, the Femizons.

[19] She reappeared with the Serpent Society when super hero undercover, Jack Flag, attempted to join the group to replace a retired Cobra.

[21] Her ability to heal quickly proved useful, as she survived the attack and returned to the Serpent Society for their mission to exact revenge on Diamondback once again.

She eventually turned on them, along with Constrictor, Solo, and Domino, to join forces with Cable, who was trying to create a sanctuary with his newfound powers.

The Society held a number of civilians hostage in a compound in the American Midwest claiming they were protecting themselves from the Skrulls.

Deadpool later corrected her, stating that the animal ring was an Australian reality show and that the only crime Anaconda is guilty of is "being a bleach queen.

[29] The Serpent Society, while on an assignment to kill a man named Marcus Johnson, encountered Taskmaster and Deadpool.

[31] On another mission, Anaconda robbed a bank alongside teammates Asp, Cottonmouth, Bushmaster, and Puff Adder.

[33] Alongside Sidewinder, Black Mamba, and the second Death Adder, Anaconda battled Elektra after being hired by the Assassins Guild to kill her allies Matchmaker, Cape Crow, and Kento Roe.

[35] During the Secret Empire storyline, Anaconda was with Serpent Solutions at the time when they are recruited by Baron Helmut Zemo to join the Army of Evil.

[40] Alongside the rest of the Serpent Society, Anaconda joined Vulture in rebelling against human-controlled drones that had been set up to hunt the criminals.

Due to all the bio-engineering performed on her, Anaconda has incredible recuperative abilities and she is able to heal non-fatal wounds several times faster than a normal human being.

[47] In the Avengers series dedicated to the American Armed Forces, Anaconda appears as a member of the Serpent Society.

After her teammates Viper, Eel, and Death Adder fail to capture a secret parcel carried by Sergeant Joe Wilton, Cobra sends Anaconda to Atlanta International Airport to aid them.

[48] In this comic book series aimed toward young children, Anaconda appears as a member of the Serpent Society.

Alongside her teammates, Anaconda battled Ms. Marvel, Spider-Man, and the Society's newest recruit, Garden Snake.

[volume & issue needed] Anaconda appears in The Avengers: Earth's Mightiest Heroes, voiced by Vanessa Marshall.