Real Name:Kirk Langstrom
Occupation:Zoologist with expertise on chiroptera, the study of bats.
Base of Opperations:Gotham City
Marital Status:Married
First Appearance:Detective Comics #400
Origin and History: Kirk Langstron was a zoologist and an expert on chiroptera, the study of bats, who hoped to produce a formula from a bat's biochemistry that would enable blind people to duplicate a bat's sonar. One night, Langstrom tested the new formula on himself - only to mutate into a grotesque half-human, half-bat creature. Langstrom quickly drew the attention of Batman, who weeks later develops an antidote and turned Langstrom back to normal.
Langstrom subsequently used his formula-believe it or not- to become a crimefighter, but eventually gave it up in the favor of civillan life with his wife Francine, who has been a solid support throughout all his transformations. However, some of Langstrom's later transformations, such as during the recent "Final Night" crossover, he posed a danger to both himself and others, and he remains an possible threat to Gotham City.
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