Edited by María Begoña García, Manuel, Ane Mujika, and Neus Ibáñez Cortina, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Anita Shell, some rights reserved (CC BY-NC), uploaded by Anita Shell
- 2. (c) CARLOS VELAZCO, some rights reserved (CC BY-NC), uploaded by CARLOS VELAZCO
- 3. (c) katunchik, some rights reserved (CC BY), uploaded by katunchik
- 4. (c) Thomas Bütikofer, some rights reserved (CC BY-NC), uploaded by Thomas Bütikofer
