Richard Myers

Feb. 22, 2008

Mapping Human Genetic Diversity

We'll talk about a new study that looks at genetic variation across different populations and uses that information to trace the migration of the first modern humans--lending support to the theory that the first humans moved out of Africa across the globe

genetics, human evolution, migration, genome, diversity

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Michael Pollan Talks Plants and Food

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Whale Tales

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Mystery Box

How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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