Peter Grant, the Class of 1877 Professor of Zoology, Emeritus, and professor of ecology and evolutionary biology, emeritus, and B. Rosemary Grant, senior research biologist, emeritus, ecology and evolutionary biology, have been named recipients of the Royal Medal in Biology. The Grants’ legendary explorations of the group of 18 bird species known as Darwin’s finches that populate the Galápagos island of Daphne Major — which is in an entirely natural state unaffected by humans — over four decades have produced an array of dazzling insights into evolutionary theory.