Brooklyn-based performance artist Marni Kotak, left, is seen shortly before she gave birth to her first child in front of a public audience at the Microscope Gallery in Bushwick. With her is her husband, artist Jason Robert Bell. She gave birth to a 9-pound baby in the gallery on Tuesday morning, aided by a midwife. A video, called The Birth of Baby X, will be added to the gallery’s upcoming exhibition.
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