How We Get Our Skin Color This animation describes how skin color is generated by skin cells as protection against ultraviolet (UV) radiation. Cell Biology Anatomy & Physiology Animations High School — General High School — AP/IB College
Anthony Barnosky and Kaitlin Maguire Measure Mammal Extinctions at the John Day Fossil Beds This video describes how prehistoric extinction rates are calculated from fossil data in a paleodatabase and compared to modern extinction rates. Evolution Earth Science Scientists at Work High School — General High School — AP/IB College