The Origin of Flight: What Use Is Half a Wing? In this video, biologist Ken Dial demonstrates that birds use their wings for more than just flying, which may help us understand how dinosaurs used their small wing-like limbs before the evolution of flight. Anatomy & Physiology Evolution Science Practices Scientists at Work High School — General High School — AP/IB College
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