Annual Premium Pay - pay at a percentage of the GS employee's annual rate (instead of the hourly overtime rate) for standby duty, administratively uncontrollable overtime work, or availability hours (5 CFR 550).
Studying evolution is an excellent way for students to learn about the process of scientific inquiry. Evolution offers countless and diverse examples of the ways scientists gather and analyze information, test competing hypotheses, and ultimately come to a consensus about explanations for natural phenomena.
Carl Zimmer. Evolution is the foundation of modern biology, and in Why Evolution Is True, Jerry Coyne masterfully explains why. From the vast trove of evidence of evolution scientists have gathered, Coyne has carefully selected some of the most striking examples and explained them with equal parts grace and authority.