PERMITTED USE: This image may be downloaded or is otherwise provided at no charge for one-time use for coverage or promotion of National Geographic TEDxDeExtinction Event and the National Geographic magazine feature dated April 2013. No copying, distribution or archiving permitted.  Sublicensing, sale or resale is prohibited.

REQUIRED CREDIT AND CAPTION: All image uses must be properly credited to the relevant photographer, as shown in this metadata, and must be accompanied by the provided caption. Any uses in which the image appears without photographer credit and a caption referencing NGM and/or TEDxDeExtinction are subject to paid licensing.

You MUST follow these requirements if using the images:

1. Include mandatory photo credit with each image
2. Show the April cover of National Geographic somewhere in the post (credit: National Geographic)
3. Provide a prominent link to www.nationalgeographic.com/deextinction
4. Reference the April issue of National Geographic magazine somewhere in the piece.