How do we know what color dinosaurs were? - Len Bloch

The microraptor was a four-winged carnivorous dinosaur with iridescent black feathers. But if our information about this dinosaur comes from fossils, how can we be certain about its color? Len Bloch shows how making sense of the evidence requires careful examination of the fossil and a good understanding of the physics of light and color.

Lesson by Len Bloch, animation by Paul Newell.

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