Image in Question window from Wikimedia Commons is by Kamahele
Licensed under http://creativecommons.org/licenses/by-sa/3.0/de/deed.en\ Creative Commons Attribution-Share Alike 3.0 Unported Germany
Image in Explanation window from Flickr is by Guillermo Viciano
Licensed under http://creativecommons.org/licenses/by-sa/2.0/deed.en\ Creative Commons Attribution-Share Alike 2.0 Generic