Birds and Dinosaurs: The Origin of Flight

Сезон 1, серия 1: Begin by contemplating the integral connections between birds and dinosaurs. Examine mounting evidence that birds not only evolved directly from dinosaurs, but also that they are themselves dinosaurs. Consider how bipedal reptiles gained the ability to fly, becoming birds, and how the cursorial (from the ground) and arboreal (gliding) theories of the origin of flight may intersect.