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A photograph by Paul Nicklen shows the tragedy of extinction, and more news from TED speakers

A photograph by Paul Nicklen shows the tragedy of extinction, and more news from TED speakers

The past few weeks have brimmed over with TED-related news. Here, some highlights: This is what extinction looks like. Photographer Paul Nicklen shocked the world with footage of a starving polar bear that he and members of his conservation group SeaLegacy captured in the Canadian Arctic Archipelago. “It rips your heart out of your chest,” []

Why things sync up: Steven Strogatz on TED.com

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Mathematician Steven Strogatz shows how flocks of creatures (like birds, fireflies and fish) manage to synchronize and act as a unit — when no one’s giving orders. The powerful tendency extends into the realm of objects, too. (Recorded February 2004 in Monterey, California. Duration: 21:59.) Watch Steven Strogatz’s talk on TED.com, where you can download []