NPR Science Friday: How Humpbacks Hunt With Bubbles from blow bubbles underwater Watch Video
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Description: http://www.sciencefriday.com/videos/watch/10389nnHumpback 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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