The document provides biographical information about Paul Singer and Arthur Singer, detailing their backgrounds and artistic careers, with Paul focusing on design in nature and Arthur excelling in wildlife art. Arthur Singer created significant works inspired by John James Audubon and gained recognition for his paintings of North American birds, many of which became famous through U.S. postal stamps. The document also discusses their familial collaboration and the legacy of Arthur's artwork, including exhibitions and retrospectives after his death in 1990.