All Episodes

The Mystery Behind Earth’s Most Epic Migration

A mysterious and highly impactful phenomenon that scientists are still learning about.

Why Does Every Animal Look Like This?

Countershading is everywhere, and it may be nature’s most successful form of camouflage.

The Dark Origins of the Scientific Method

Under house arrest in Egypt, one mathematician transformed how we examine the world.

About Be Smart

Be Smart is created and hosted by Joe Hanson, Ph.D. We give you deep answers to simple questions about science and the rest of the universe.

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