What Color Were Dinosaurs?

Based on fossil evidence, how can scientists know what color dinosaurs were? In this TEDEd lesson, 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.

In this terrific video you'll learn a bit about the microraptor, a four-winged carnivorous dinosaur with iridescent black feathers, as well as the work that scientists do in determining how dinosaurs actually looked.
You can find more resources at How Do We Know What Color Dinosaurs Were?

Finding Math in Van Gogh's Starry Night

Turbulence is a concept that is difficult to model and understand. Amazingly, Van Gogh captured it in his work Starry Night.


Learn more by viewing the complete TED Ed lesson by Natalya St. Clair.

Dead Stuff: The Secret Ingredient In Our Food Chain

Here's a terrific video on "the brown food chain." Watch it and learn how pond scum and animal poop contribute enormous amounts of energy to our ecosystems.


Learn more by viewing the complete TED Ed lesson by John C. Moore.