Attributions for all photographs used in the 2020 Bio-Techne Calendar. Redirects in the attributions will lead to the source, author page, and license information for that photo.
"Spoonbridge and Cherry at dawn by Claes Oldenburg Coosje van Bruggen, Walker Art Center, Minneapolis MN" by Lorie Shaull is licensed under CC BY-SA 2.0.
“Big Moai Statue and sky plus landscape in Easter Island, Chile” was released by the author into the public domain and is available via goodfreephotos.com.
“Fireworks display over Abu Dhabi, United Arab Emirates” by Thomas Nilsson is licensed under CC BY-SA 2.0.