34:40How did feathers evolve? - Carl Zimmer
From the creator
View full lesson: http://ed.ted.com/lessons/how-did-feathers-evolve-carl-zimmer To look at the evolution of modern bird feathers, we must start a long time ago, with the dinosaurs from whence they came. We see early incarnations of feathers on dinosaur fossils, and remnants of dinosaurs in a bird's wish bone. Carl Zimmer explores the stages of evolution and how even the reasons for feathers have evolved over millions of years. Lesson by Carl Zimmer, animation by Armella Leung.
Published 2013-05-02 · Watch on YouTube ↗
Availability and playback restrictions are controlled by the original channel.





