Edited by María Begoña García, Manuel, and Ane Mujika, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 2. (c) Pascal Blachier, some rights reserved (CC BY)
- 3. (c) Valter Jacinto, some rights reserved (CC BY-NC-SA)
- 4. (c) Roberto Sindaco, some rights reserved (CC BY-NC-SA), uploaded by Roberto Sindaco
