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New York City's natural history: Eric Sanderson on TED.com

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400 years after Hudson found New York harbor, Eric Sanderson shares how he made a 3D map of Mannahatta’s fascinating pre-city ecology of hills, rivers, wildlife — accurate down to the block — when Times Square was a wetland and you couldn’t get delivery. (Recorded at TEDGlobal, July 2009, Oxford, UK. Duration: 16:09) Twitter URL: []

Twitter Snapshot: Eric Sanderson rediscovers "Mannahatta"

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The last day of TEDGlobal 2009 kicked off with landscape biologist Eric Sanderson, who gave a thrilling look at the Mannahatta Project- a re-envisioning of Manhattan in its original, 17th-century glory. This Google Earth of ancient New York definitely wowed the TEDsters on Twitter: Eric Sanderson: Amazing how many water sources have disappeared from NYC []