Adam Maloof

Nov. 09, 2012

Scientists Solve Mystery of Earth’s Shifting Poles

A look beneath Earth’s surface at what may be causing the planet’s poles to wander back and forth.

magnetic pole, magnetic field, north pole, south pole, field drift, field reversal, geomagnetic

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Michael Pollan Talks Plants and Food

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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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