Disciplinary Core Ideas for biological evolution that include evidence of common ancestry and diversity, natural selection, and adaptation are concepts students need to grasp in Common Core State Standards. This volume explains Charles Darwin’s theory of evolution through natural selection while telling how a hypothesis became not merely a theory but the foundation of an entire science. Darwin saw the importance of this theory and risked controversy and ridicule to bring it to light. Topics include the Beagle’s voyage of discovery and Darwin’s writings as well as the controversy over teaching evolution, creation science, and intelligent design in biology classrooms today.