The following walk reports may include locations subject to restricted access. It may not be open to the public and you would not be authorised to visit the location without approval of the landowner. Our walking groups obtain permission where required for these walks.
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