Dimensions
Avengers: Covert / Instinct
Developing strange hybrid squirrel-like features, including buck teeth and a bushy tail, in her teens, Doreen Green acquired the nickname “Rodent” from cruel fellow students. In between attempts to conceal her odd appearance, she escaped her peers’ taunts in the woodlands, where she bonded with the squirrels and formed a close friendship with one she named Monkey Joe.
Idolizing Iron Man (Tony Stark), based at nearby Stark Enterprises, Doreen made herself a costume and took the name Squirrel Girl, hoping to become his partner.