Behe's "Darwin's Black Box"

Behe's "Darwin's Black Box" argues that certain complex biological structures, like the bacterial flagellum, are too intricate to have evolved solely through natural selection and gradual changes. He introduces the concept of "irreducible complexity," suggesting that these systems require all parts to function, making incremental evolution unlikely. Behe contends that such complexity points to the necessity of an intelligent designer, challenging aspects of traditional evolutionary theory. While controversial, his work emphasizes that some biological features are remarkably well-integrated and may not easily arise from simple, step-by-step modifications.