Terms of Use

All photographs are copyrighted by Nathan Yuen under U.S. and international copyright laws. No Form of reproduction is authorized, including copying or saving of digital image files, or the alteration or manipulation of image files, unless expressly permitted under license.  If your organization is intimately involved in conservation and education, I can provide a limited royalty-free license. Tell me what you do and how you would like to use the photograph and I will consider your request.