The American Naturalist《美国博物学家》(月刊). The American Naturalist is a monthly journal devoted to furthering the objectives of the American Society of Naturalists (ASN): to advance our understanding of evolution, ecology, behavior, and other broad biological disciplines toward the conceptual unification of the biological sciences. Thus, the journal welcomes manuscripts that develop new conceptual syntheses, pose new and significant problems, introduce novel subjects to the readership, or change the way people think about a topic. Manuscripts are evaluated for their interest to the broad international readership of researchers in organismal biology.