Crawford Allan

Mar. 26, 2010

Trade Talks on Endangered Species

An Iranian salamander gets international protection, but red coral and bluefin tuna are out in the cold, as negotiators debate rules for trade in endangered species at the CITES talks in Doha.

endangered species, trade, cites

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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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