He was originally a spider, but after being bitten by a radioactive, mentally unhinged pig scientist named May Porker, he turned into an anthropomorphic pig with spider powers.
In recent years, Spider-Ham has appeared in comic book events like Spider-Verse and Secret Wars, as well as the Ultimate Spider-Man animated series.
Spider-Ham debuted in the comics in 1983’s Marvel Tails Starring Peter Porker, the Spectacular Spider-Ham #1 (that’s a mouthful), hailing from a world populated by other Marvel-themed talking animals.