Edited by María Begoña García, Manuel, Ane Mujika, and Neus Ibáñez Cortina, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Yuri Tedéo, some rights reserved (CC BY-NC), uploaded by Yuri Tedéo
- 2. (c) Cheng-Tao Lin, some rights reserved (CC BY), uploaded by Cheng-Tao Lin
- 3. (c) Svetlana Nesterova, some rights reserved (CC BY-NC), uploaded by Svetlana Nesterova
- 4. (c) Bruce Calvert, some rights reserved (CC BY), uploaded by Bruce Calvert
- 5. (c) Dinesh Valke, some rights reserved (CC BY-NC-SA)
- 6. (c) antje_w, some rights reserved (CC BY-NC)
- 7. no rights reserved, uploaded by Peter Warren
