Edited by María Begoña García, Manuel, Ane Mujika, and Neus Ibáñez Cortina, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Russell Pfau, some rights reserved (CC BY-NC), uploaded by Russell Pfau
- 2. (c) Muriel Bendel, some rights reserved (CC BY-NC), uploaded by Muriel Bendel
- 3. (c) Aleksandr Ebel, some rights reserved (CC BY-NC), uploaded by Aleksandr Ebel
- 4. (c) Сергей, some rights reserved (CC BY-NC), uploaded by Сергей
- 5. (c) Matt Lavin, some rights reserved (CC BY-SA)
