Photo Credits

North American Beaver photo.  by: Ryan Hodnett   Link, if any: https://creativecommons.org/licenses/by-sa/4.0/deed.en

beaver-dam-lodge-pond-14019930731FD – Public domain pictures .net

Beaver Hero - by: Steve Hersey  filename: Beaver-_Steve_Hersey_edit_(16273141142).jpg  https://creativecommons.org/licenses/by-sa/2.0/

BeaverDam_8409    Photographer: Walter Siegmund        
License: https://en.wikipedia.org/wiki/GNU_Free_Documentation_License